164975530388 has 48 divisors (see below), whose sum is σ = 322368540480. Its totient is φ = 73414688256.

The previous prime is 164975530373. The next prime is 164975530399. The reversal of 164975530388 is 883035579461.

It is a happy number.

It is a super-2 number, since 2×164975530388² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 590006 + ... + 823442.

It is an arithmetic number, because the mean of its divisors is an integer number (6716011260).

Almost surely, 2^164975530388 is an apocalyptic number.

It is an amenable number.

164975530388 is a deficient number, since it is larger than the sum of its proper divisors (157393010092).

164975530388 is a wasteful number, since it uses less digits than its factorization.

164975530388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234024 (or 234022 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 59.

The spelling of 164975530388 in words is "one hundred sixty-four billion, nine hundred seventy-five million, five hundred thirty thousand, three hundred eighty-eight".