72147457436216 has 32 divisors (see below), whose sum is σ = 135332706150000. Its totient is φ = 36058738571520.

The previous prime is 72147457436189. The next prime is 72147457436221. The reversal of 72147457436216 is 61263475474127.

It is a super-2 number, since 2×72147457436216² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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, 214663436 + ... + 214999268.

Almost surely, 2^{72147457436216} is an apocalyptic number.

It is an amenable number.

72147457436216 is a deficient number, since it is larger than the sum of its proper divisors (63185248713784).

72147457436216 is a wasteful number, since it uses less digits than its factorization.

72147457436216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346919 (or 346915 counting only the distinct ones).

The product of its digits is 47416320, while the sum is 59.

The spelling of 72147457436216 in words is "seventy-two trillion, one hundred forty-seven billion, four hundred fifty-seven million, four hundred thirty-six thousand, two hundred sixteen".