80601891995 has 16 divisors (see below), whose sum is σ = 98821840320. Its totient is φ = 63088581504.

The previous prime is 80601891989. The next prime is 80601892003. The reversal of 80601891995 is 59919810608.

It is a cyclic number.

It is not a de Polignac number, because 80601891995 - 2³⁰ = 79528150171 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80601891995.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 328484 + ... + 518753.

It is an arithmetic number, because the mean of its divisors is an integer number (6176365020).

Almost surely, 2^80601891995 is an apocalyptic number.

80601891995 is a deficient number, since it is larger than the sum of its proper divisors (18219948325).

80601891995 is a wasteful number, since it uses less digits than its factorization.

80601891995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847654.

The product of its (nonzero) digits is 1399680, while the sum is 56.

The spelling of 80601891995 in words is "eighty billion, six hundred one million, eight hundred ninety-one thousand, nine hundred ninety-five".