72446664680 has 64 divisors (see below), whose sum is σ = 176278636800. Its totient is φ = 26637569280.

The previous prime is 72446664677. The next prime is 72446664683. The reversal of 72446664680 is 8646664427.

It is an interprime number because it is at equal distance from previous prime (72446664677) and next prime (72446664683).

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (72446664683) 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 15 ways as a sum of consecutive naturals, for example, 167186 + ... + 415745.

It is an arithmetic number, because the mean of its divisors is an integer number (2754353700).

Almost surely, 2^72446664680 is an apocalyptic number.

It is an amenable number.

72446664680 is an abundant number, since it is smaller than the sum of its proper divisors (103831972120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72446664680 is a wasteful number, since it uses less digits than its factorization.

72446664680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583194 (or 583190 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 53.

The spelling of 72446664680 in words is "seventy-two billion, four hundred forty-six million, six hundred sixty-four thousand, six hundred eighty".