164547819690912 has 192 divisors, whose sum is σ = 561248378127360. Its totient is φ = 45920321701632.

The previous prime is 164547819690847. The next prime is 164547819690973. The reversal of 164547819690912 is 219096918745461.

164547819690912 is a `hidden beast` number, since 1 + 6 + 4 + 5 + 478 + 1 + 9 + 69 + 0 + 91 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 316100178 + ... + 316620305.

It is an arithmetic number, because the mean of its divisors is an integer number (2923168636080).

Almost surely, 2^{164547819690912} is an apocalyptic number.

164547819690912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

164547819690912 is an abundant number, since it is smaller than the sum of its proper divisors (396700558436448).

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

164547819690912 is a wasteful number, since it uses less digits than its factorization.

164547819690912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632720552 (or 632720538 counting only the distinct ones).

The product of its (nonzero) digits is 235146240, while the sum is 72.

The spelling of 164547819690912 in words is "one hundred sixty-four trillion, five hundred forty-seven billion, eight hundred nineteen million, six hundred ninety thousand, nine hundred twelve".