72266732154136 has 32 divisors (see below), whose sum is σ = 145924136467200. Its totient is φ = 33353664422400.

The previous prime is 72266732154109. The next prime is 72266732154139. The reversal of 72266732154136 is 63145123766227.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72266732154139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14868361 + ... + 19120711.

It is an arithmetic number, because the mean of its divisors is an integer number (4560129264600).

Almost surely, 2^{72266732154136} is an apocalyptic number.

It is an amenable number.

72266732154136 is an abundant number, since it is smaller than the sum of its proper divisors (73657404313064).

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

72266732154136 is a wasteful number, since it uses less digits than its factorization.

72266732154136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4415779 (or 4415775 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 55.

The spelling of 72266732154136 in words is "seventy-two trillion, two hundred sixty-six billion, seven hundred thirty-two million, one hundred fifty-four thousand, one hundred thirty-six".