79566275066 has 4 divisors (see below), whose sum is σ = 119349412602. Its totient is φ = 39783137532.

The previous prime is 79566275051. The next prime is 79566275083. The reversal of 79566275066 is 66057266597.

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

It can be written as a sum of positive squares in only one way, i.e., 44211370225 + 35354904841 = 210265^2 + 188029^2 .

It is a junction number, because it is equal to n+sod(n) for n = 79566274996 and 79566275014.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19891568765 + ... + 19891568768.

Almost surely, 2^79566275066 is an apocalyptic number.

79566275066 is a deficient number, since it is larger than the sum of its proper divisors (39783137536).

79566275066 is a wasteful number, since it uses less digits than its factorization.

79566275066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39783137535.

The product of its (nonzero) digits is 28576800, while the sum is 59.

The spelling of 79566275066 in words is "seventy-nine billion, five hundred sixty-six million, two hundred seventy-five thousand, sixty-six".