80530979566 has 8 divisors (see below), whose sum is σ = 121232558520. Its totient is φ = 40120126728.

The previous prime is 80530979423. The next prime is 80530979567. The reversal of 80530979566 is 66597903508.

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

It is a self number, because there is not a number n which added to its sum of digits gives 80530979566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80530979567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72680836 + ... + 72681943.

It is an arithmetic number, because the mean of its divisors is an integer number (15154069815).

Almost surely, 2^80530979566 is an apocalyptic number.

80530979566 is a deficient number, since it is larger than the sum of its proper divisors (40701578954).

80530979566 is a wasteful number, since it uses less digits than its factorization.

80530979566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145363058.

The product of its (nonzero) digits is 12247200, while the sum is 58.

The spelling of 80530979566 in words is "eighty billion, five hundred thirty million, nine hundred seventy-nine thousand, five hundred sixty-six".