72165715172102 has 8 divisors (see below), whose sum is σ = 108249937479696. Its totient is φ = 36082402678872.

The previous prime is 72165715172071. The next prime is 72165715172129. The reversal of 72165715172102 is 20127151756127.

72165715172102 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227255258 + ... + 227572589.

It is an arithmetic number, because the mean of its divisors is an integer number (13531242184962).

Almost surely, 2^{72165715172102} is an apocalyptic number.

72165715172102 is a deficient number, since it is larger than the sum of its proper divisors (36084222307594).

72165715172102 is a wasteful number, since it uses less digits than its factorization.

72165715172102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454907182.

The product of its (nonzero) digits is 411600, while the sum is 47.

The spelling of 72165715172102 in words is "seventy-two trillion, one hundred sixty-five billion, seven hundred fifteen million, one hundred seventy-two thousand, one hundred two".