8156906397495 has 48 divisors (see below), whose sum is σ = 14383699593120. Its totient is φ = 4275002068992.

The previous prime is 8156906397467. The next prime is 8156906397533. The reversal of 8156906397495 is 5947936096518.

8156906397495 is a `hidden beast` number, since 8 + 15 + 6 + 90 + 6 + 39 + 7 + 495 = 666.

It is not a de Polignac number, because 8156906397495 - 2¹⁴ = 8156906381111 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6476187 + ... + 7632483.

It is an arithmetic number, because the mean of its divisors is an integer number (299660408190).

Almost surely, 2^{8156906397495} is an apocalyptic number.

8156906397495 is a deficient number, since it is larger than the sum of its proper divisors (6226793195625).

8156906397495 is a wasteful number, since it uses less digits than its factorization.

8156906397495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159024 (or 1159021 counting only the distinct ones).

The product of its (nonzero) digits is 440899200, while the sum is 72.

The spelling of 8156906397495 in words is "eight trillion, one hundred fifty-six billion, nine hundred six million, three hundred ninety-seven thousand, four hundred ninety-five".