161556627235076 has 48 divisors (see below), whose sum is σ = 306769135026816. Its totient is φ = 74148897897984.

The previous prime is 161556627235039. The next prime is 161556627235097. The reversal of 161556627235076 is 670532726655161.

It is a super-2 number, since 2×161556627235076² (a number of 29 digits) contains 22 as substring.

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, 38826896 + ... + 42785991.

It is an arithmetic number, because the mean of its divisors is an integer number (6391023646392).

Almost surely, 2^{161556627235076} is an apocalyptic number.

It is an amenable number.

161556627235076 is a deficient number, since it is larger than the sum of its proper divisors (145212507791740).

161556627235076 is a wasteful number, since it uses less digits than its factorization.

161556627235076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81613628 (or 81613626 counting only the distinct ones).

The product of its (nonzero) digits is 95256000, while the sum is 62.

The spelling of 161556627235076 in words is "one hundred sixty-one trillion, five hundred fifty-six billion, six hundred twenty-seven million, two hundred thirty-five thousand, seventy-six".