164400465790 has 16 divisors (see below), whose sum is σ = 322822733040. Its totient is φ = 59781987520.

The previous prime is 164400465731. The next prime is 164400465833. The reversal of 164400465790 is 97564004461.

It is a super-3 number, since 3×164400465790³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 164400465790.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 747274735 + ... + 747274954.

It is an arithmetic number, because the mean of its divisors is an integer number (20176420815).

Almost surely, 2^164400465790 is an apocalyptic number.

164400465790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164400465790 is a deficient number, since it is larger than the sum of its proper divisors (158422267250).

164400465790 is a wasteful number, since it uses less digits than its factorization.

164400465790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1494549707.

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 164400465790 in words is "one hundred sixty-four billion, four hundred million, four hundred sixty-five thousand, seven hundred ninety".