620453464736560 has 160 divisors (see below), whose sum is σ = 1801950729772032. Its totient is φ = 193432498744320.

The previous prime is 620453464736473. The next prime is 620453464736597. The reversal of 620453464736560 is 65637464354026.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 635535556 + ... + 636511075.

Almost surely, 2^{620453464736560} is an apocalyptic number.

It is an amenable number.

620453464736560 is an abundant number, since it is smaller than the sum of its proper divisors (1181497265035472).

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

620453464736560 is a wasteful number, since it uses less digits than its factorization.

620453464736560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272046731 (or 1272046725 counting only the distinct ones).

The product of its (nonzero) digits is 261273600, while the sum is 61.

The spelling of 620453464736560 in words is "six hundred twenty trillion, four hundred fifty-three billion, four hundred sixty-four million, seven hundred thirty-six thousand, five hundred sixty".