73522164720 has 80 divisors (see below), whose sum is σ = 228017405952. Its totient is φ = 19597420800.

The previous prime is 73522164707. The next prime is 73522164733. The reversal of 73522164720 is 2746122537.

It is an interprime number because it is at equal distance from previous prime (73522164707) and next prime (73522164733).

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×73522164720² (a number of 23 digits) contains 22 as substring.

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, 499089 + ... + 629391.

Almost surely, 2^73522164720 is an apocalyptic number.

It is an amenable number.

73522164720 is an abundant number, since it is smaller than the sum of its proper divisors (154495241232).

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

73522164720 is a wasteful number, since it uses less digits than its factorization.

73522164720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132670 (or 132664 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 39.

The spelling of 73522164720 in words is "seventy-three billion, five hundred twenty-two million, one hundred sixty-four thousand, seven hundred twenty".