79194062566 has 4 divisors (see below), whose sum is σ = 118791093852. Its totient is φ = 39597031282.

The previous prime is 79194062557. The next prime is 79194062567. The reversal of 79194062566 is 66526049197.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79194062567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19798515640 + ... + 19798515643.

It is an arithmetic number, because the mean of its divisors is an integer number (29697773463).

Almost surely, 2^79194062566 is an apocalyptic number.

79194062566 is a deficient number, since it is larger than the sum of its proper divisors (39597031286).

79194062566 is a wasteful number, since it uses less digits than its factorization.

79194062566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39597031285.

The product of its (nonzero) digits is 4898880, while the sum is 55.

The spelling of 79194062566 in words is "seventy-nine billion, one hundred ninety-four million, sixty-two thousand, five hundred sixty-six".