72260616515 has 4 divisors (see below), whose sum is σ = 86712739824. Its totient is φ = 57808493208.

The previous prime is 72260616509. The next prime is 72260616529. The reversal of 72260616515 is 51561606227.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51561606227 = 619 ⋅83298233.

It is a cyclic number.

It is not a de Polignac number, because 72260616515 - 2⁶ = 72260616451 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7226061647 + ... + 7226061656.

It is an arithmetic number, because the mean of its divisors is an integer number (21678184956).

Almost surely, 2^72260616515 is an apocalyptic number.

72260616515 is a deficient number, since it is larger than the sum of its proper divisors (14452123309).

72260616515 is a wasteful number, since it uses less digits than its factorization.

72260616515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14452123308.

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 72260616515 in words is "seventy-two billion, two hundred sixty million, six hundred sixteen thousand, five hundred fifteen".