72159106951 has 4 divisors (see below), whose sum is σ = 72525397032. Its totient is φ = 71792816872.

The previous prime is 72159106931. The next prime is 72159106961. The reversal of 72159106951 is 15960195127.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15960195127 = 7487 ⋅2131721.

It is a cyclic number.

It is not a de Polignac number, because 72159106951 - 2¹¹ = 72159104903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72159106931) 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, 183144745 + ... + 183145138.

It is an arithmetic number, because the mean of its divisors is an integer number (18131349258).

Almost surely, 2^72159106951 is an apocalyptic number.

72159106951 is a deficient number, since it is larger than the sum of its proper divisors (366290081).

72159106951 is a wasteful number, since it uses less digits than its factorization.

72159106951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366290080.

The product of its (nonzero) digits is 170100, while the sum is 46.

The spelling of 72159106951 in words is "seventy-two billion, one hundred fifty-nine million, one hundred six thousand, nine hundred fifty-one".