566699740138 has 16 divisors (see below), whose sum is σ = 971576242560. Its totient is φ = 242848573776.

The previous prime is 566699740129. The next prime is 566699740153. The reversal of 566699740138 is 831047996665.

It is a super-2 number, since 2×566699740138² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 566699740138.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1740006 + ... + 2039857.

It is an arithmetic number, because the mean of its divisors is an integer number (60723515160).

Almost surely, 2^566699740138 is an apocalyptic number.

566699740138 is a deficient number, since it is larger than the sum of its proper divisors (404876502422).

566699740138 is a wasteful number, since it uses less digits than its factorization.

566699740138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3790581.

The product of its (nonzero) digits is 58786560, while the sum is 64.

The spelling of 566699740138 in words is "five hundred sixty-six billion, six hundred ninety-nine million, seven hundred forty thousand, one hundred thirty-eight".