164646643144330 has 64 divisors (see below), whose sum is σ = 313293256704000. Its totient is φ = 62126216163648.

The previous prime is 164646643144259. The next prime is 164646643144583. The reversal of 164646643144330 is 33441346646461.

It is a super-2 number, since 2×164646643144330² (a number of 29 digits) contains 22 as substring.

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, 572885127 + ... + 573172453.

It is an arithmetic number, because the mean of its divisors is an integer number (4895207136000).

Almost surely, 2^{164646643144330} is an apocalyptic number.

164646643144330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164646643144330 is a deficient number, since it is larger than the sum of its proper divisors (148646613559670).

164646643144330 is a wasteful number, since it uses less digits than its factorization.

164646643144330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300211.

The product of its (nonzero) digits is 35831808, while the sum is 55.

The spelling of 164646643144330 in words is "one hundred sixty-four trillion, six hundred forty-six billion, six hundred forty-three million, one hundred forty-four thousand, three hundred thirty".