72198235662508 has 12 divisors (see below), whose sum is σ = 132996749904760. Its totient is φ = 34199164261152.

The previous prime is 72198235662503. The next prime is 72198235662523. The reversal of 72198235662508 is 80526653289127.

It is a self number, because there is not a number n which added to its sum of digits gives 72198235662508.

It is not an unprimeable number, because it can be changed into a prime (72198235662503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474988392441 + ... + 474988392592.

Almost surely, 2^{72198235662508} is an apocalyptic number.

It is an amenable number.

72198235662508 is a deficient number, since it is larger than the sum of its proper divisors (60798514242252).

72198235662508 is a wasteful number, since it uses less digits than its factorization.

72198235662508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949976785056 (or 949976785054 counting only the distinct ones).

The product of its (nonzero) digits is 87091200, while the sum is 64.

The spelling of 72198235662508 in words is "seventy-two trillion, one hundred ninety-eight billion, two hundred thirty-five million, six hundred sixty-two thousand, five hundred eight".