72017601215 has 16 divisors (see below), whose sum is σ = 98827779072. Its totient is φ = 49353106464.

The previous prime is 72017601203. The next prime is 72017601223. The reversal of 72017601215 is 51210671027.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72017601215 is a prime.

It is a super-3 number, since 3×72017601215³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 575399 + ... + 689288.

It is an arithmetic number, because the mean of its divisors is an integer number (6176736192).

Almost surely, 2^72017601215 is an apocalyptic number.

72017601215 is a deficient number, since it is larger than the sum of its proper divisors (26810177857).

72017601215 is a wasteful number, since it uses less digits than its factorization.

72017601215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266326.

The product of its (nonzero) digits is 5880, while the sum is 32.

The spelling of 72017601215 in words is "seventy-two billion, seventeen million, six hundred one thousand, two hundred fifteen".