156664940535 has 16 divisors (see below), whose sum is σ = 278515450080. Its totient is φ = 83554634880.

The previous prime is 156664940507. The next prime is 156664940557. The reversal of 156664940535 is 535049466651.

It is not a de Polignac number, because 156664940535 - 2⁸ = 156664940279 is a prime.

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, 580240386 + ... + 580240655.

It is an arithmetic number, because the mean of its divisors is an integer number (17407215630).

Almost surely, 2^156664940535 is an apocalyptic number.

156664940535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

156664940535 is a deficient number, since it is larger than the sum of its proper divisors (121850509545).

156664940535 is a wasteful number, since it uses less digits than its factorization.

156664940535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160481055 (or 1160481049 counting only the distinct ones).

The product of its (nonzero) digits is 11664000, while the sum is 54.

The spelling of 156664940535 in words is "one hundred fifty-six billion, six hundred sixty-four million, nine hundred forty thousand, five hundred thirty-five".