72511066 has 16 divisors (see below), whose sum is σ = 111242880. Its totient is φ = 35437680.

The previous prime is 72511063. The next prime is 72511067. The reversal of 72511066 is 66011527.

It is not an unprimeable number, because it can be changed into a prime (72511063) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 18595 + ... + 22153.

It is an arithmetic number, because the mean of its divisors is an integer number (6952680).

Almost surely, 2^72511066 is an apocalyptic number.

72511066 is a deficient number, since it is larger than the sum of its proper divisors (38731814).

72511066 is a wasteful number, since it uses less digits than its factorization.

72511066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3789.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 72511066 is about 8515.3429760639. The cubic root of 72511066 is about 416.9987597415.

The spelling of 72511066 in words is "seventy-two million, five hundred eleven thousand, sixty-six".