161660101163 has 32 divisors (see below), whose sum is σ = 198234777600. Its totient is φ = 130091270400.

The previous prime is 161660101133. The next prime is 161660101199. The reversal of 161660101163 is 361101066161.

It is a cyclic number.

It is not a de Polignac number, because 161660101163 - 2²² = 161655906859 is a prime.

It is a super-2 number, since 2×161660101163² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161660101103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 242306 + ... + 618087.

It is an arithmetic number, because the mean of its divisors is an integer number (6194836800).

Almost surely, 2^161660101163 is an apocalyptic number.

161660101163 is a deficient number, since it is larger than the sum of its proper divisors (36574676437).

161660101163 is a wasteful number, since it uses less digits than its factorization.

161660101163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860483.

The product of its (nonzero) digits is 3888, while the sum is 32.

The spelling of 161660101163 in words is "one hundred sixty-one billion, six hundred sixty million, one hundred one thousand, one hundred sixty-three".