4640320720216 has 16 divisors (see below), whose sum is σ = 9078888366000. Its totient is φ = 2219283822624.

The previous prime is 4640320720181. The next prime is 4640320720291. The reversal of 4640320720216 is 6120270230464.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12609566991 + ... + 12609567358.

It is an arithmetic number, because the mean of its divisors is an integer number (567430522875).

Almost surely, 2^{4640320720216} is an apocalyptic number.

4640320720216 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

4640320720216 is a deficient number, since it is larger than the sum of its proper divisors (4438567645784).

4640320720216 is a wasteful number, since it uses less digits than its factorization.

4640320720216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25219134378 (or 25219134374 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 37.

The spelling of 4640320720216 in words is "four trillion, six hundred forty billion, three hundred twenty million, seven hundred twenty thousand, two hundred sixteen".