72116606201 has 4 divisors (see below), whose sum is σ = 72184449792. Its totient is φ = 72048762612.

The previous prime is 72116606189. The next prime is 72116606209. The reversal of 72116606201 is 10260661127.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72116606201 - 2¹⁰ = 72116605177 is a prime.

It is a super-2 number, since 2×72116606201² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72116606209) 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, 33920201 + ... + 33922326.

It is an arithmetic number, because the mean of its divisors is an integer number (18046112448).

Almost surely, 2^72116606201 is an apocalyptic number.

It is an amenable number.

72116606201 is a deficient number, since it is larger than the sum of its proper divisors (67843591).

72116606201 is a wasteful number, since it uses less digits than its factorization.

72116606201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67843590.

The product of its (nonzero) digits is 6048, while the sum is 32.

The spelling of 72116606201 in words is "seventy-two billion, one hundred sixteen million, six hundred six thousand, two hundred one".