164658159772 has 12 divisors (see below), whose sum is σ = 288434565720. Its totient is φ = 82248283856.

The previous prime is 164658159767. The next prime is 164658159793. The reversal of 164658159772 is 277951856461.

It is a super-2 number, since 2×164658159772² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 164658159772.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20194423 + ... + 20202574.

It is an arithmetic number, because the mean of its divisors is an integer number (24036213810).

Almost surely, 2^164658159772 is an apocalyptic number.

It is an amenable number.

164658159772 is a deficient number, since it is larger than the sum of its proper divisors (123776405948).

164658159772 is a wasteful number, since it uses less digits than its factorization.

164658159772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40398020 (or 40398018 counting only the distinct ones).

The product of its digits is 25401600, while the sum is 61.

The spelling of 164658159772 in words is "one hundred sixty-four billion, six hundred fifty-eight million, one hundred fifty-nine thousand, seven hundred seventy-two".