79966608541 has 8 divisors (see below), whose sum is σ = 85218810624. Its totient is φ = 74862355920.

The previous prime is 79966608509. The next prime is 79966608551. The reversal of 79966608541 is 14580666997.

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

It is not a de Polignac number, because 79966608541 - 2⁵ = 79966608509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79966608541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79966608551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36986250 + ... + 36988411.

It is an arithmetic number, because the mean of its divisors is an integer number (10652351328).

Almost surely, 2^79966608541 is an apocalyptic number.

It is an amenable number.

79966608541 is a deficient number, since it is larger than the sum of its proper divisors (5252202083).

79966608541 is a wasteful number, since it uses less digits than its factorization.

79966608541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73974731.

The product of its (nonzero) digits is 19595520, while the sum is 61.

The spelling of 79966608541 in words is "seventy-nine billion, nine hundred sixty-six million, six hundred eight thousand, five hundred forty-one".