164661072996 has 96 divisors (see below), whose sum is σ = 460943400960. Its totient is φ = 44756697600.

The previous prime is 164661072991. The next prime is 164661073013. The reversal of 164661072996 is 699270166461.

It is a super-2 number, since 2×164661072996² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (164661072991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 382245 + ... + 689516.

It is an arithmetic number, because the mean of its divisors is an integer number (4801493760).

Almost surely, 2^164661072996 is an apocalyptic number.

It is an amenable number.

164661072996 is an abundant number, since it is smaller than the sum of its proper divisors (296282327964).

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

164661072996 is a wasteful number, since it uses less digits than its factorization.

164661072996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071865 (or 1071863 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 57.

The spelling of 164661072996 in words is "one hundred sixty-four billion, six hundred sixty-one million, seventy-two thousand, nine hundred ninety-six".