2156263032554 has 16 divisors (see below), whose sum is σ = 3235461052200. Its totient is φ = 1077776086464.

The previous prime is 2156263032499. The next prime is 2156263032617. The reversal of 2156263032554 is 4552303626512.

It can be written as a sum of positive squares in 4 ways, for example, as 1975359975625 + 180903056929 = 1405475^2 + 425327^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100763384 + ... + 100784780.

Almost surely, 2^{2156263032554} is an apocalyptic number.

2156263032554 is a deficient number, since it is larger than the sum of its proper divisors (1079198019646).

2156263032554 is a wasteful number, since it uses less digits than its factorization.

2156263032554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35657.

The product of its (nonzero) digits is 1296000, while the sum is 44.

The spelling of 2156263032554 in words is "two trillion, one hundred fifty-six billion, two hundred sixty-three million, thirty-two thousand, five hundred fifty-four".