720641416642 has 32 divisors (see below), whose sum is σ = 1237951123200. Its totient is φ = 308205477888.

The previous prime is 720641416637. The next prime is 720641416657. The reversal of 720641416642 is 246614146027.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14631834 + ... + 14681002.

It is an arithmetic number, because the mean of its divisors is an integer number (38685972600).

Almost surely, 2^720641416642 is an apocalyptic number.

720641416642 is a deficient number, since it is larger than the sum of its proper divisors (517309706558).

720641416642 is a wasteful number, since it uses less digits than its factorization.

720641416642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51330.

The product of its (nonzero) digits is 387072, while the sum is 43.

The spelling of 720641416642 in words is "seven hundred twenty billion, six hundred forty-one million, four hundred sixteen thousand, six hundred forty-two".