164556640160 has 48 divisors (see below), whose sum is σ = 424107345312. Its totient is φ = 59838777600.

The previous prime is 164556640117. The next prime is 164556640177. The reversal of 164556640160 is 61046655461.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46747286 + ... + 46750805.

It is an arithmetic number, because the mean of its divisors is an integer number (8835569694).

Almost surely, 2^164556640160 is an apocalyptic number.

164556640160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164556640160 is an abundant number, since it is smaller than the sum of its proper divisors (259550705152).

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

164556640160 is a wasteful number, since it uses less digits than its factorization.

164556640160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93498117 (or 93498109 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 164556640160 in words is "one hundred sixty-four billion, five hundred fifty-six million, six hundred forty thousand, one hundred sixty".