72520056668 has 48 divisors (see below), whose sum is σ = 131755317120. Its totient is φ = 34904563200.

The previous prime is 72520056659. The next prime is 72520056671. The reversal of 72520056668 is 86665002527.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 5282333 + ... + 5296043.

It is an arithmetic number, because the mean of its divisors is an integer number (2744902440).

Almost surely, 2^72520056668 is an apocalyptic number.

It is an amenable number.

72520056668 is a deficient number, since it is larger than the sum of its proper divisors (59235260452).

72520056668 is a wasteful number, since it uses less digits than its factorization.

72520056668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14238 (or 14236 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 72520056668 in words is "seventy-two billion, five hundred twenty million, fifty-six thousand, six hundred sixty-eight".