305305212640620 has 48 divisors (see below), whose sum is σ = 854907409294848. Its totient is φ = 81409693475520.

The previous prime is 305305212640607. The next prime is 305305212640651. The reversal of 305305212640620 is 26046212503503.

It is a super-2 number, since 2×305305212640620² (a number of 30 digits) contains 22 as substring.

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, 156204916 + ... + 158147355.

It is an arithmetic number, because the mean of its divisors is an integer number (17810571026976).

Almost surely, 2^{305305212640620} is an apocalyptic number.

305305212640620 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

305305212640620 is an abundant number, since it is smaller than the sum of its proper divisors (549602196654228).

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

305305212640620 is a wasteful number, since it uses less digits than its factorization.

305305212640620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314368470 (or 314368468 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 39.

The spelling of 305305212640620 in words is "three hundred five trillion, three hundred five billion, two hundred twelve million, six hundred forty thousand, six hundred twenty".