79990020211111 has 8 divisors (see below), whose sum is σ = 80015471965440. Its totient is φ = 79964569375032.

The previous prime is 79990020211103. The next prime is 79990020211139. The reversal of 79990020211111 is 11111202009997.

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 79990020211111 - 2³ = 79990020211103 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 (79990020218111) 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, 202184256 + ... + 202579498.

It is an arithmetic number, because the mean of its divisors is an integer number (10001933995680).

Almost surely, 2^{79990020211111} is an apocalyptic number.

79990020211111 is a deficient number, since it is larger than the sum of its proper divisors (25451754329).

79990020211111 is a wasteful number, since it uses less digits than its factorization.

79990020211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459125.

The product of its (nonzero) digits is 20412, while the sum is 43.

The spelling of 79990020211111 in words is "seventy-nine trillion, nine hundred ninety billion, twenty million, two hundred eleven thousand, one hundred eleven".