666113077 has 8 divisors (see below), whose sum is σ = 801339200. Its totient is φ = 540903744.

The previous prime is 666113053. The next prime is 666113081. The reversal of 666113077 is 770311666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 666113077 - 2⁷ = 666112949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666113047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2504052 + ... + 2504317.

It is an arithmetic number, because the mean of its divisors is an integer number (100167400).

Almost surely, 2^666113077 is an apocalyptic number.

It is an amenable number.

666113077 is a deficient number, since it is larger than the sum of its proper divisors (135226123).

666113077 is a wasteful number, since it uses less digits than its factorization.

666113077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5008395.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 666113077 is about 25809.1665305178. The cubic root of 666113077 is about 873.3385952166.

The spelling of 666113077 in words is "six hundred sixty-six million, one hundred thirteen thousand, seventy-seven".