72533156522215 has 16 divisors (see below), whose sum is σ = 87067006920000. Its totient is φ = 58008381071872.

The previous prime is 72533156522171. The next prime is 72533156522327. The reversal of 72533156522215 is 51222565133527.

It is a cyclic number.

It is not a de Polignac number, because 72533156522215 - 2¹⁹ = 72533155997927 is a prime.

It is a super-2 number, since 2×72533156522215² (a number of 29 digits) contains 22 as substring.

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, 330875934 + ... + 331095076.

It is an arithmetic number, because the mean of its divisors is an integer number (5441687932500).

Almost surely, 2^{72533156522215} is an apocalyptic number.

72533156522215 is a deficient number, since it is larger than the sum of its proper divisors (14533850397785).

72533156522215 is a wasteful number, since it uses less digits than its factorization.

72533156522215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239546.

The product of its digits is 3780000, while the sum is 49.

The spelling of 72533156522215 in words is "seventy-two trillion, five hundred thirty-three billion, one hundred fifty-six million, five hundred twenty-two thousand, two hundred fifteen".