620024016645 has 48 divisors (see below), whose sum is σ = 1212836976000. Its totient is φ = 290251570560.

The previous prime is 620024016589. The next prime is 620024016671. The reversal of 620024016645 is 546610420026.

620024016645 is a `hidden beast` number, since 6 + 2 + 0 + 0 + 2 + 4 + 0 + 1 + 6 + 645 = 666.

It is not a de Polignac number, because 620024016645 - 2⁸ = 620024016389 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21581745 + ... + 21610454.

It is an arithmetic number, because the mean of its divisors is an integer number (25267437000).

Almost surely, 2^620024016645 is an apocalyptic number.

It is an amenable number.

620024016645 is a deficient number, since it is larger than the sum of its proper divisors (592812959355).

620024016645 is a wasteful number, since it uses less digits than its factorization.

620024016645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43192250 (or 43192247 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 620024016645 in words is "six hundred twenty billion, twenty-four million, sixteen thousand, six hundred forty-five".