72014528655 has 24 divisors (see below), whose sum is σ = 129448340112. Its totient is φ = 38407747968.

The previous prime is 72014528639. The next prime is 72014528657. The reversal of 72014528655 is 55682541027.

72014528655 is a `hidden beast` number, since 72 + 0 + 1 + 4 + 528 + 6 + 55 = 666.

It is not a de Polignac number, because 72014528655 - 2⁴ = 72014528639 is a prime.

It is a super-2 number, since 2×72014528655² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 72014528655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72014528657) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29634394 + ... + 29636823.

It is an arithmetic number, because the mean of its divisors is an integer number (5393680838).

Almost surely, 2^72014528655 is an apocalyptic number.

72014528655 is a deficient number, since it is larger than the sum of its proper divisors (57433811457).

72014528655 is an equidigital number, since it uses as much as digits as its factorization.

72014528655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59271237 (or 59271225 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 45.

The spelling of 72014528655 in words is "seventy-two billion, fourteen million, five hundred twenty-eight thousand, six hundred fifty-five".