2156513243532 has 48 divisors (see below), whose sum is σ = 5298292137600. Its totient is φ = 680799375360.

The previous prime is 2156513243527. The next prime is 2156513243561. The reversal of 2156513243532 is 2353423156512.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 661594 + ... + 2179617.

It is an arithmetic number, because the mean of its divisors is an integer number (110381086200).

Almost surely, 2^{2156513243532} is an apocalyptic number.

It is an amenable number.

2156513243532 is an abundant number, since it is smaller than the sum of its proper divisors (3141778894068).

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

2156513243532 is a wasteful number, since it uses less digits than its factorization.

2156513243532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2844566 (or 2844564 counting only the distinct ones).

The product of its digits is 648000, while the sum is 42.

The spelling of 2156513243532 in words is "two trillion, one hundred fifty-six billion, five hundred thirteen million, two hundred forty-three thousand, five hundred thirty-two".