164764720392 has 32 divisors (see below), whose sum is σ = 436141908000. Its totient is φ = 51690892544.

The previous prime is 164764720357. The next prime is 164764720453. The reversal of 164764720392 is 293027467461.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

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, 201917142 + ... + 201917957.

It is an arithmetic number, because the mean of its divisors is an integer number (13629434625).

Almost surely, 2^164764720392 is an apocalyptic number.

164764720392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

164764720392 is an abundant number, since it is smaller than the sum of its proper divisors (271377187608).

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

164764720392 is a wasteful number, since it uses less digits than its factorization.

164764720392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403835125 (or 403835121 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 51.

The spelling of 164764720392 in words is "one hundred sixty-four billion, seven hundred sixty-four million, seven hundred twenty thousand, three hundred ninety-two".