72322706156 has 12 divisors (see below), whose sum is σ = 127057207368. Its totient is φ = 36020646912.

The previous prime is 72322706149. The next prime is 72322706171. The reversal of 72322706156 is 65160722327.

It is a super-3 number, since 3×72322706156³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35175386 + ... + 35177441.

It is an arithmetic number, because the mean of its divisors is an integer number (10588100614).

Almost surely, 2^72322706156 is an apocalyptic number.

It is an amenable number.

72322706156 is a deficient number, since it is larger than the sum of its proper divisors (54734501212).

72322706156 is a wasteful number, since it uses less digits than its factorization.

72322706156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70353088 (or 70353086 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 41.

It can be divided in two parts, 72 and 322706156, that multiplied together give a palindrome (23234843232).

The spelling of 72322706156 in words is "seventy-two billion, three hundred twenty-two million, seven hundred six thousand, one hundred fifty-six".