154203023162340 has 144 divisors (see below), whose sum is σ = 469256592757680. Its totient is φ = 40988303170560.

The previous prime is 154203023162299. The next prime is 154203023162369. The reversal of 154203023162340 is 43261320302451.

154203023162340 is a `hidden beast` number, since 1 + 5 + 4 + 2 + 0 + 3 + 0 + 23 + 1 + 623 + 4 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 8161260531264 + 146041762631076 = 2856792^2 + 12084774^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 154203023162295 and 154203023162304.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 920921746 + ... + 921089174.

It is an arithmetic number, because the mean of its divisors is an integer number (3258726338595).

Almost surely, 2^{154203023162340} is an apocalyptic number.

154203023162340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154203023162340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234628296378840).

154203023162340 is an abundant number, since it is smaller than the sum of its proper divisors (315053569595340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

154203023162340 is a wasteful number, since it uses less digits than its factorization.

154203023162340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183902 (or 183897 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

Adding to 154203023162340 its reverse (43261320302451), we get a palindrome (197464343464791).

The spelling of 154203023162340 in words is "one hundred fifty-four trillion, two hundred three billion, twenty-three million, one hundred sixty-two thousand, three hundred forty".