2154324433140 has 120 divisors (see below), whose sum is σ = 7372577009952. Its totient is φ = 522260464320.

The previous prime is 2154324433133. The next prime is 2154324433153. The reversal of 2154324433140 is 413344234512.

2154324433140 is a `hidden beast` number, since 2 + 1 + 5 + 43 + 244 + 331 + 40 = 666.

It is a super-2 number, since 2×2154324433140² (a number of 25 digits) contains 22 as substring.

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 = 2154324433095 and 2154324433104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 60428994 + ... + 60464633.

Almost surely, 2^{2154324433140} is an apocalyptic number.

2154324433140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2154324433140 is an abundant number, since it is smaller than the sum of its proper divisors (5218252576812).

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

2154324433140 is a wasteful number, since it uses less digits than its factorization.

2154324433140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120893659 (or 120893648 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 2154324433140 its reverse (413344234512), we get a palindrome (2567668667652).

The spelling of 2154324433140 in words is "two trillion, one hundred fifty-four billion, three hundred twenty-four million, four hundred thirty-three thousand, one hundred forty".