80401677064 has 16 divisors (see below), whose sum is σ = 150758437500. Its totient is φ = 40199427072.

The previous prime is 80401677061. The next prime is 80401677071. The reversal of 80401677064 is 46077610408.

It can be written as a sum of positive squares in 2 ways, for example, as 80083340100 + 318336964 = 282990^2 + 17842^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 80401677064.

It is not an unprimeable number, because it can be changed into a prime (80401677061) 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, 89184 + ... + 410800.

Almost surely, 2^80401677064 is an apocalyptic number.

It is an amenable number.

80401677064 is a deficient number, since it is larger than the sum of its proper divisors (70356760436).

80401677064 is a wasteful number, since it uses less digits than its factorization.

80401677064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352872 (or 352868 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 43.

The spelling of 80401677064 in words is "eighty billion, four hundred one million, six hundred seventy-seven thousand, sixty-four".