72165368 has 24 divisors (see below), whose sum is σ = 148731240. Its totient is φ = 32802000.

The previous prime is 72165307. The next prime is 72165377. The reversal of 72165368 is 86356127.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36308 + ... + 38243.

It is an arithmetic number, because the mean of its divisors is an integer number (6197135).

Almost surely, 2^72165368 is an apocalyptic number.

It is an amenable number.

72165368 is an abundant number, since it is smaller than the sum of its proper divisors (76565872).

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

72165368 is a wasteful number, since it uses less digits than its factorization.

72165368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74579 (or 74564 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

The square root of 72165368 is about 8495.0201883221. The cubic root of 72165368 is about 416.3350204337.

The spelling of 72165368 in words is "seventy-two million, one hundred sixty-five thousand, three hundred sixty-eight".