308182640164 has 81 divisors (see below), whose sum is σ = 662446659483. Its totient is φ = 125066830896.

The previous prime is 308182640153. The next prime is 308182640203. The reversal of 308182640164 is 461046281803.

The square root of 308182640164 is 555142.

It is a perfect power (a square), and thus also a powerful number.

It is a self number, because there is not a number n which added to its sum of digits gives 308182640164.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 147666729 + ... + 147668815.

Almost surely, 2^308182640164 is an apocalyptic number.

308182640164 is the 555142-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 308182640164

308182640164 is an abundant number, since it is smaller than the sum of its proper divisors (354264019319).

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

308182640164 is an equidigital number, since it uses as much as digits as its factorization.

308182640164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4230 (or 2115 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 43.

The spelling of 308182640164 in words is "three hundred eight billion, one hundred eighty-two million, six hundred forty thousand, one hundred sixty-four".