72016670115601 has 16 divisors (see below), whose sum is σ = 74213492371200. Its totient is φ = 69841822286080.

The previous prime is 72016670115587. The next prime is 72016670115629. The reversal of 72016670115601 is 10651107661027.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72016670115601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72016670815601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 570445 + ... + 12014938.

It is an arithmetic number, because the mean of its divisors is an integer number (4638343273200).

Almost surely, 2^{72016670115601} is an apocalyptic number.

It is an amenable number.

72016670115601 is a deficient number, since it is larger than the sum of its proper divisors (2196822255599).

72016670115601 is a wasteful number, since it uses less digits than its factorization.

72016670115601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12586256.

The product of its (nonzero) digits is 105840, while the sum is 43.

Adding to 72016670115601 its reverse (10651107661027), we get a palindrome (82667777776628).

The spelling of 72016670115601 in words is "seventy-two trillion, sixteen billion, six hundred seventy million, one hundred fifteen thousand, six hundred one".