160638991664 has 20 divisors (see below), whose sum is σ = 311251314504. Its totient is φ = 80316071808.

The previous prime is 160638991619. The next prime is 160638991741. The reversal of 160638991664 is 466199836061.

It is a happy number.

160638991664 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 2×160638991664² (a number of 23 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 196964 + ... + 600060.

Almost surely, 2^160638991664 is an apocalyptic number.

It is an amenable number.

160638991664 is a deficient number, since it is larger than the sum of its proper divisors (150612322840).

160638991664 is a wasteful number, since it uses less digits than its factorization.

160638991664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428012 (or 428006 counting only the distinct ones).

The product of its (nonzero) digits is 10077696, while the sum is 59.

The spelling of 160638991664 in words is "one hundred sixty billion, six hundred thirty-eight million, nine hundred ninety-one thousand, six hundred sixty-four".