2156513166424 has 64 divisors (see below), whose sum is σ = 4335772989600. Its totient is φ = 1001954156544.

The previous prime is 2156513166419. The next prime is 2156513166433. The reversal of 2156513166424 is 4246613156512.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8136604 + ... + 8397460.

Almost surely, 2^{2156513166424} is an apocalyptic number.

It is an amenable number.

2156513166424 is an abundant number, since it is smaller than the sum of its proper divisors (2179259823176).

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

2156513166424 is a wasteful number, since it uses less digits than its factorization.

2156513166424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261652 (or 261648 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 46.

The spelling of 2156513166424 in words is "two trillion, one hundred fifty-six billion, five hundred thirteen million, one hundred sixty-six thousand, four hundred twenty-four".