2520628664 has 16 divisors (see below), whose sum is σ = 4729578000. Its totient is φ = 1259407872.

The previous prime is 2520628661. The next prime is 2520628687. The reversal of 2520628664 is 4668260252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520628661) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 101417 + ... + 123800.

It is an arithmetic number, because the mean of its divisors is an integer number (295598625).

Almost surely, 2^2520628664 is an apocalyptic number.

It is an amenable number.

2520628664 is a deficient number, since it is larger than the sum of its proper divisors (2208949336).

2520628664 is a wasteful number, since it uses less digits than its factorization.

2520628664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226622 (or 226618 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 41.

The square root of 2520628664 is about 50205.8628448909. The cubic root of 2520628664 is about 1360.9315748339.

The spelling of 2520628664 in words is "two billion, five hundred twenty million, six hundred twenty-eight thousand, six hundred sixty-four".