620807552320 has 28 divisors (see below), whose sum is σ = 1478297984724. Its totient is φ = 248323020800.

The previous prime is 620807552317. The next prime is 620807552347. The reversal of 620807552320 is 23255708026.

It can be written as a sum of positive squares in 2 ways, for example, as 402240082176 + 218567470144 = 634224^2 + 467512^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 970011481 + ... + 970012120.

Almost surely, 2^620807552320 is an apocalyptic number.

It is an amenable number.

620807552320 is an abundant number, since it is smaller than the sum of its proper divisors (857490432404).

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

620807552320 is a wasteful number, since it uses less digits than its factorization.

620807552320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940023618 (or 1940023608 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 40.

The spelling of 620807552320 in words is "six hundred twenty billion, eight hundred seven million, five hundred fifty-two thousand, three hundred twenty".