72501161652 has 36 divisors (see below), whose sum is σ = 183521782080. Its totient is φ = 24133433232.

The previous prime is 72501161633. The next prime is 72501161657. The reversal of 72501161652 is 25616110527.

72501161652 is a `hidden beast` number, since 7 + 25 + 0 + 11 + 616 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72501161657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1374618 + ... + 1426385.

It is an arithmetic number, because the mean of its divisors is an integer number (5097827280).

Almost surely, 2^72501161652 is an apocalyptic number.

It is an amenable number.

72501161652 is an abundant number, since it is smaller than the sum of its proper divisors (111020620428).

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

72501161652 is a wasteful number, since it uses less digits than its factorization.

72501161652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2801732 (or 2801727 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The spelling of 72501161652 in words is "seventy-two billion, five hundred one million, one hundred sixty-one thousand, six hundred fifty-two".