163612215153556 has 48 divisors (see below), whose sum is σ = 308855117771200. Its totient is φ = 75388680744192.

The previous prime is 163612215153487. The next prime is 163612215153593. The reversal of 163612215153556 is 655351512216361.

It is a Harshad number since it is a multiple of its sum of digits (52).

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, 1137870475 + ... + 1138014253.

Almost surely, 2^{163612215153556} is an apocalyptic number.

It is an amenable number.

163612215153556 is a deficient number, since it is larger than the sum of its proper divisors (145242902617644).

163612215153556 is a wasteful number, since it uses less digits than its factorization.

163612215153556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179768 (or 179766 counting only the distinct ones).

The product of its digits is 4860000, while the sum is 52.

The spelling of 163612215153556 in words is "one hundred sixty-three trillion, six hundred twelve billion, two hundred fifteen million, one hundred fifty-three thousand, five hundred fifty-six".