620164652456 has 16 divisors (see below), whose sum is σ = 1171296380340. Its totient is φ = 307818951040.

The previous prime is 620164652449. The next prime is 620164652461. The reversal of 620164652456 is 654256461026.

It can be written as a sum of positive squares in 2 ways, for example, as 573003580900 + 47161071556 = 756970^2 + 217166^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 620164652456.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282920735 + ... + 282922926.

Almost surely, 2^620164652456 is an apocalyptic number.

It is an amenable number.

620164652456 is a deficient number, since it is larger than the sum of its proper divisors (551131727884).

620164652456 is a wasteful number, since it uses less digits than its factorization.

620164652456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565843804 (or 565843800 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 47.

The spelling of 620164652456 in words is "six hundred twenty billion, one hundred sixty-four million, six hundred fifty-two thousand, four hundred fifty-six".