620616456513 has 12 divisors (see below), whose sum is σ = 943627361040. Its totient is φ = 391968288216.

The previous prime is 620616456457. The next prime is 620616456517. The reversal of 620616456513 is 315654616026.

620616456513 is a `hidden beast` number, since 6 + 20 + 6 + 1 + 64 + 56 + 513 = 666.

It is not a de Polignac number, because 620616456513 - 2¹⁸ = 620616194369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (620616456517) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1814667831 + ... + 1814668172.

It is an arithmetic number, because the mean of its divisors is an integer number (78635613420).

Almost surely, 2^620616456513 is an apocalyptic number.

It is an amenable number.

620616456513 is a deficient number, since it is larger than the sum of its proper divisors (323010904527).

620616456513 is a wasteful number, since it uses less digits than its factorization.

620616456513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3629336028 (or 3629336025 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 620616456513 in words is "six hundred twenty billion, six hundred sixteen million, four hundred fifty-six thousand, five hundred thirteen".