164725664226730 has 32 divisors (see below), whose sum is σ = 296987191737408. Its totient is φ = 65783430960000.

The previous prime is 164725664226649. The next prime is 164725664226743. The reversal of 164725664226730 is 37622466527461.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21410989 + ... + 28069231.

It is an arithmetic number, because the mean of its divisors is an integer number (9280849741794).

Almost surely, 2^{164725664226730} is an apocalyptic number.

164725664226730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164725664226730 is a deficient number, since it is larger than the sum of its proper divisors (132261527510678).

164725664226730 is a wasteful number, since it uses less digits than its factorization.

164725664226730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6662262.

The product of its (nonzero) digits is 121927680, while the sum is 61.

The spelling of 164725664226730 in words is "one hundred sixty-four trillion, seven hundred twenty-five billion, six hundred sixty-four million, two hundred twenty-six thousand, seven hundred thirty".