80676662577506 has 4 divisors (see below), whose sum is σ = 121014993866262. Its totient is φ = 40338331288752.

The previous prime is 80676662577493. The next prime is 80676662577509. The reversal of 80676662577506 is 60577526667608.

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., 74711388780625 + 5965273796881 = 8643575^2 + 2442391^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 80676662577506.

It is not an unprimeable number, because it can be changed into a prime (80676662577509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20169165644375 + ... + 20169165644378.

Almost surely, 2^{80676662577506} is an apocalyptic number.

80676662577506 is a deficient number, since it is larger than the sum of its proper divisors (40338331288756).

80676662577506 is a wasteful number, since it uses less digits than its factorization.

80676662577506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40338331288755.

The product of its (nonzero) digits is 1066867200, while the sum is 71.

The spelling of 80676662577506 in words is "eighty trillion, six hundred seventy-six billion, six hundred sixty-two million, five hundred seventy-seven thousand, five hundred six".