72548508156 has 12 divisors (see below), whose sum is σ = 169279852392. Its totient is φ = 24182836048.

The previous prime is 72548508143. The next prime is 72548508157. The reversal of 72548508156 is 65180584527.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×72548508156² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72548508099 and 72548508108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72548508157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3022854495 + ... + 3022854518.

It is an arithmetic number, because the mean of its divisors is an integer number (14106654366).

Almost surely, 2^72548508156 is an apocalyptic number.

It is an amenable number.

72548508156 is an abundant number, since it is smaller than the sum of its proper divisors (96731344236).

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

72548508156 is a wasteful number, since it uses less digits than its factorization.

72548508156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6045709020 (or 6045709018 counting only the distinct ones).

The product of its (nonzero) digits is 2688000, while the sum is 51.

The spelling of 72548508156 in words is "seventy-two billion, five hundred forty-eight million, five hundred eight thousand, one hundred fifty-six".