161660101174 has 36 divisors (see below), whose sum is σ = 288618968988. Its totient is φ = 67829395920.

The previous prime is 161660101133. The next prime is 161660101199. The reversal of 161660101174 is 471101066161.

It is a super-2 number, since 2×161660101174² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1935484 + ... + 2017279.

It is an arithmetic number, because the mean of its divisors is an integer number (8017193583).

Almost surely, 2^161660101174 is an apocalyptic number.

161660101174 is a deficient number, since it is larger than the sum of its proper divisors (126958867814).

161660101174 is a wasteful number, since it uses less digits than its factorization.

161660101174 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3952813 (or 3952789 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 34.

The spelling of 161660101174 in words is "one hundred sixty-one billion, six hundred sixty million, one hundred one thousand, one hundred seventy-four".