2156450057524 has 24 divisors (see below), whose sum is σ = 4357363008320. Its totient is φ = 914665118976.

The previous prime is 2156450057521. The next prime is 2156450057539. The reversal of 2156450057524 is 4257500546512.

It is a happy number.

It is a super-3 number, since 3×2156450057524³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156450057521) 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, 396987354 + ... + 396992785.

Almost surely, 2^{2156450057524} is an apocalyptic number.

It is an amenable number.

2156450057524 is an abundant number, since it is smaller than the sum of its proper divisors (2200912950796).

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

2156450057524 is a wasteful number, since it uses less digits than its factorization.

2156450057524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793980247 (or 793980245 counting only the distinct ones).

The product of its (nonzero) digits is 1680000, while the sum is 46.

The spelling of 2156450057524 in words is "two trillion, one hundred fifty-six billion, four hundred fifty million, fifty-seven thousand, five hundred twenty-four".