161660063160 has 96 divisors (see below), whose sum is σ = 556300826640. Its totient is φ = 40573504512.

The previous prime is 161660063137. The next prime is 161660063221. The reversal of 161660063160 is 61360066161.

It is a happy number.

161660063160 is a `hidden beast` number, since 1 + 6 + 16 + 6 + 0 + 0 + 631 + 6 + 0 = 666.

161660063160 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161660063160² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13201402 + ... + 13213641.

Almost surely, 2^161660063160 is an apocalyptic number.

161660063160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161660063160 is an abundant number, since it is smaller than the sum of its proper divisors (394640763480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161660063160 is a wasteful number, since it uses less digits than its factorization.

161660063160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26415077 (or 26415070 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The spelling of 161660063160 in words is "one hundred sixty-one billion, six hundred sixty million, sixty-three thousand, one hundred sixty".