161700016515112 has 32 divisors (see below), whose sum is σ = 310720817594880. Its totient is φ = 78842890157440.

The previous prime is 161700016515109. The next prime is 161700016515161. The reversal of 161700016515112 is 211515610007161.

It is a super-2 number, since 2×161700016515112² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109159048 + ... + 110630455.

It is an arithmetic number, because the mean of its divisors is an integer number (9710025549840).

Almost surely, 2^{161700016515112} is an apocalyptic number.

It is an amenable number.

161700016515112 is a deficient number, since it is larger than the sum of its proper divisors (149020801079768).

161700016515112 is a wasteful number, since it uses less digits than its factorization.

161700016515112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219791793 (or 219791789 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 37.

The spelling of 161700016515112 in words is "one hundred sixty-one trillion, seven hundred billion, sixteen million, five hundred fifteen thousand, one hundred twelve".