72154316122 has 16 divisors (see below), whose sum is σ = 124030160640. Its totient is φ = 30839016528.

The previous prime is 72154316107. The next prime is 72154316141. The reversal of 72154316122 is 22161345127.

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, 7016497 + ... + 7026772.

It is an arithmetic number, because the mean of its divisors is an integer number (7751885040).

Almost surely, 2^72154316122 is an apocalyptic number.

72154316122 is a deficient number, since it is larger than the sum of its proper divisors (51875844518).

72154316122 is a wasteful number, since it uses less digits than its factorization.

72154316122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14043645.

The product of its digits is 20160, while the sum is 34.

The spelling of 72154316122 in words is "seventy-two billion, one hundred fifty-four million, three hundred sixteen thousand, one hundred twenty-two".