257156094495 has 16 divisors (see below), whose sum is σ = 411972577920. Its totient is φ = 136975641504.

The previous prime is 257156094487. The next prime is 257156094509. The reversal of 257156094495 is 594490651752.

It is not a de Polignac number, because 257156094495 - 2³ = 257156094487 is a prime.

It is a super-2 number, since 2×257156094495² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10880025 + ... + 10903634.

It is an arithmetic number, because the mean of its divisors is an integer number (25748286120).

Almost surely, 2^257156094495 is an apocalyptic number.

257156094495 is a deficient number, since it is larger than the sum of its proper divisors (154816483425).

257156094495 is a wasteful number, since it uses less digits than its factorization.

257156094495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21784454.

The product of its (nonzero) digits is 13608000, while the sum is 57.

The spelling of 257156094495 in words is "two hundred fifty-seven billion, one hundred fifty-six million, ninety-four thousand, four hundred ninety-five".