2156450057526 has 16 divisors (see below), whose sum is σ = 4313582288064. Its totient is φ = 718702990344.

The previous prime is 2156450057521. The next prime is 2156450057539. The reversal of 2156450057526 is 6257500546512.

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, 28382776 + ... + 28458651.

It is an arithmetic number, because the mean of its divisors is an integer number (269598893004).

Almost surely, 2^{2156450057526} is an apocalyptic number.

2156450057526 is an abundant number, since it is smaller than the sum of its proper divisors (2157132230538).

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

2156450057526 is a wasteful number, since it uses less digits than its factorization.

2156450057526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56847755.

The product of its (nonzero) digits is 2520000, while the sum is 48.

The spelling of 2156450057526 in words is "two trillion, one hundred fifty-six billion, four hundred fifty million, fifty-seven thousand, five hundred twenty-six".