157212694065 has 64 divisors (see below), whose sum is σ = 289239515136. Its totient is φ = 71428718592.

The previous prime is 157212694043. The next prime is 157212694097. The reversal of 157212694065 is 560496212751.

It is not a de Polignac number, because 157212694065 - 2⁹ = 157212693553 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12487764 + ... + 12500346.

It is an arithmetic number, because the mean of its divisors is an integer number (4519367424).

Almost surely, 2^157212694065 is an apocalyptic number.

157212694065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

157212694065 is a deficient number, since it is larger than the sum of its proper divisors (132026821071).

157212694065 is a wasteful number, since it uses less digits than its factorization.

157212694065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13318.

The product of its (nonzero) digits is 907200, while the sum is 48.

The spelling of 157212694065 in words is "one hundred fifty-seven billion, two hundred twelve million, six hundred ninety-four thousand, sixty-five".