72060906656 has 48 divisors (see below), whose sum is σ = 147091956480. Its totient is φ = 34714467840.

The previous prime is 72060906647. The next prime is 72060906683. The reversal of 72060906656 is 65660906027.

It is a self number, because there is not a number n which added to its sum of digits gives 72060906656.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65180 + ... + 385188.

It is an arithmetic number, because the mean of its divisors is an integer number (3064415760).

Almost surely, 2^72060906656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72060906656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73545978240).

72060906656 is an abundant number, since it is smaller than the sum of its proper divisors (75031049824).

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

72060906656 is a wasteful number, since it uses less digits than its factorization.

72060906656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320277 (or 320269 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 47.

The spelling of 72060906656 in words is "seventy-two billion, sixty million, nine hundred six thousand, six hundred fifty-six".