620644680104 has 16 divisors (see below), whose sum is σ = 1164005471520. Its totient is φ = 310243221040.

The previous prime is 620644680041. The next prime is 620644680109. The reversal of 620644680104 is 401086446026.

It is not an unprimeable number, because it can be changed into a prime (620644680109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9856532 + ... + 9919299.

It is an arithmetic number, because the mean of its divisors is an integer number (72750341970).

Almost surely, 2^620644680104 is an apocalyptic number.

It is an amenable number.

620644680104 is a deficient number, since it is larger than the sum of its proper divisors (543360791416).

620644680104 is a wasteful number, since it uses less digits than its factorization.

620644680104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19779760 (or 19779756 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 41.

The spelling of 620644680104 in words is "six hundred twenty billion, six hundred forty-four million, six hundred eighty thousand, one hundred four".