72566795774 has 32 divisors (see below), whose sum is σ = 119287901664. Its totient is φ = 32834580480.

The previous prime is 72566795773. The next prime is 72566795789. The reversal of 72566795774 is 47759766527.

It is a self number, because there is not a number n which added to its sum of digits gives 72566795774.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72566795773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5316062 + ... + 5329694.

It is an arithmetic number, because the mean of its divisors is an integer number (3727746927).

Almost surely, 2^72566795774 is an apocalyptic number.

72566795774 is a deficient number, since it is larger than the sum of its proper divisors (46721105890).

72566795774 is a wasteful number, since it uses less digits than its factorization.

72566795774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14732.

The product of its digits is 155584800, while the sum is 65.

The spelling of 72566795774 in words is "seventy-two billion, five hundred sixty-six million, seven hundred ninety-five thousand, seven hundred seventy-four".