80656340983 has 4 divisors (see below), whose sum is σ = 80667468648. Its totient is φ = 80645213320.

The previous prime is 80656340969. The next prime is 80656341049. The reversal of 80656340983 is 38904365608.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80656340983 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80656340983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80656310983) 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, 5552953 + ... + 5567458.

It is an arithmetic number, because the mean of its divisors is an integer number (20166867162).

Almost surely, 2^80656340983 is an apocalyptic number.

80656340983 is a deficient number, since it is larger than the sum of its proper divisors (11127665).

80656340983 is a wasteful number, since it uses less digits than its factorization.

80656340983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11127664.

The product of its (nonzero) digits is 3732480, while the sum is 52.

The spelling of 80656340983 in words is "eighty billion, six hundred fifty-six million, three hundred forty thousand, nine hundred eighty-three".