154450402000 has 40 divisors (see below), whose sum is σ = 373461076872. Its totient is φ = 61780160000.

The previous prime is 154450401953. The next prime is 154450402009. The reversal of 154450402000 is 204054451.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2518835344 + 151931566656 = 50188^2 + 389784^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154450402009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38610601 + ... + 38614600.

Almost surely, 2^154450402000 is an apocalyptic number.

154450402000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154450402000 is an abundant number, since it is smaller than the sum of its proper divisors (219010674872).

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

154450402000 is an equidigital number, since it uses as much as digits as its factorization.

154450402000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77225224 (or 77225208 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 154450402000 its reverse (204054451), we get a palindrome (154654456451).

The spelling of 154450402000 in words is "one hundred fifty-four billion, four hundred fifty million, four hundred two thousand".