2056451662155 has 32 divisors (see below), whose sum is σ = 3592858468608. Its totient is φ = 996118704000.

The previous prime is 2056451662141. The next prime is 2056451662169. The reversal of 2056451662155 is 5512661546502.

It is an interprime number because it is at equal distance from previous prime (2056451662141) and next prime (2056451662169).

It is not a de Polignac number, because 2056451662155 - 2⁵ = 2056451662123 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5755864 + ... + 6102693.

It is an arithmetic number, because the mean of its divisors is an integer number (112276827144).

Almost surely, 2^{2056451662155} is an apocalyptic number.

2056451662155 is a deficient number, since it is larger than the sum of its proper divisors (1536406806453).

2056451662155 is a wasteful number, since it uses less digits than its factorization.

2056451662155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11859627.

The product of its (nonzero) digits is 2160000, while the sum is 48.

The spelling of 2056451662155 in words is "two trillion, fifty-six billion, four hundred fifty-one million, six hundred sixty-two thousand, one hundred fifty-five".