79060066221 has 16 divisors (see below), whose sum is σ = 105608577600. Its totient is φ = 52609216128.

The previous prime is 79060066219. The next prime is 79060066231. The reversal of 79060066221 is 12266006097.

It is not a de Polignac number, because 79060066221 - 2¹ = 79060066219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79060066221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79060066231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4327935 + ... + 4346163.

It is an arithmetic number, because the mean of its divisors is an integer number (6600536100).

Almost surely, 2^79060066221 is an apocalyptic number.

It is an amenable number.

79060066221 is a deficient number, since it is larger than the sum of its proper divisors (26548511379).

79060066221 is a wasteful number, since it uses less digits than its factorization.

79060066221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20828.

The product of its (nonzero) digits is 54432, while the sum is 39.

The spelling of 79060066221 in words is "seventy-nine billion, sixty million, sixty-six thousand, two hundred twenty-one".