72121056060508 has 48 divisors (see below), whose sum is σ = 156380193950400. Its totient is φ = 28339920820224.

The previous prime is 72121056060481. The next prime is 72121056060569. The reversal of 72121056060508 is 80506065012127.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 664827541 + ... + 664936012.

It is an arithmetic number, because the mean of its divisors is an integer number (3257920707300).

Almost surely, 2^{72121056060508} is an apocalyptic number.

It is an amenable number.

72121056060508 is an abundant number, since it is smaller than the sum of its proper divisors (84259137889892).

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

72121056060508 is a wasteful number, since it uses less digits than its factorization.

72121056060508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329763726 (or 1329763724 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 43.

The spelling of 72121056060508 in words is "seventy-two trillion, one hundred twenty-one billion, fifty-six million, sixty thousand, five hundred eight".