79566666667 has 8 divisors (see below), whose sum is σ = 80737216992. Its totient is φ = 78397502400.

The previous prime is 79566666653. The next prime is 79566666701. The reversal of 79566666667 is 76666666597.

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 79566666667 - 2²⁷ = 79432448939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79566666596 and 79566666605.

It is not an unprimeable number, because it can be changed into a prime (79566661667) 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, 230578 + ... + 460759.

It is an arithmetic number, because the mean of its divisors is an integer number (10092152124).

Almost surely, 2^79566666667 is an apocalyptic number.

79566666667 is a deficient number, since it is larger than the sum of its proper divisors (1170550325).

79566666667 is a wasteful number, since it uses less digits than its factorization.

79566666667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693029.

The product of its digits is 617258880, while the sum is 70.

Subtracting from 79566666667 its sum of digits (70), we obtain a palindrome (79566666597).

The spelling of 79566666667 in words is "seventy-nine billion, five hundred sixty-six million, six hundred sixty-six thousand, six hundred sixty-seven".