72156995895 has 8 divisors (see below), whose sum is σ = 115451193456. Its totient is φ = 38483731136.

The previous prime is 72156995891. The next prime is 72156995903. The reversal of 72156995895 is 59859965127.

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

It is a cyclic number.

It is not a de Polignac number, because 72156995895 - 2² = 72156995891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72156995891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2405233182 + ... + 2405233211.

It is an arithmetic number, because the mean of its divisors is an integer number (14431399182).

Almost surely, 2^72156995895 is an apocalyptic number.

72156995895 is a deficient number, since it is larger than the sum of its proper divisors (43294197561).

72156995895 is a wasteful number, since it uses less digits than its factorization.

72156995895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4810466401.

The product of its digits is 61236000, while the sum is 66.

The spelling of 72156995895 in words is "seventy-two billion, one hundred fifty-six million, nine hundred ninety-five thousand, eight hundred ninety-five".