620818548480 has 216 divisors, whose sum is σ = 2313196337088. Its totient is φ = 152816836608.

The previous prime is 620818548473. The next prime is 620818548503. The reversal of 620818548480 is 84845818026.

620818548480 is a `hidden beast` number, since 6 + 2 + 0 + 8 + 1 + 85 + 484 + 80 = 666.

It is a super-2 number, since 2×620818548480² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1922952 + ... + 2222471.

Almost surely, 2^620818548480 is an apocalyptic number.

620818548480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

620818548480 is an abundant number, since it is smaller than the sum of its proper divisors (1692377788608).

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

620818548480 is a wasteful number, since it uses less digits than its factorization.

620818548480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4145463 (or 4145446 counting only the distinct ones).

The product of its (nonzero) digits is 3932160, while the sum is 54.

The spelling of 620818548480 in words is "six hundred twenty billion, eight hundred eighteen million, five hundred forty-eight thousand, four hundred eighty".