80195991995 has 32 divisors (see below), whose sum is σ = 110989232640. Its totient is φ = 54489726720.

The previous prime is 80195991989. The next prime is 80195992099. The reversal of 80195991995 is 59919959108.

It is not a de Polignac number, because 80195991995 - 2⁸ = 80195991739 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3118751 + ... + 3144359.

It is an arithmetic number, because the mean of its divisors is an integer number (3468413520).

Almost surely, 2^80195991995 is an apocalyptic number.

80195991995 is a deficient number, since it is larger than the sum of its proper divisors (30793240645).

80195991995 is a wasteful number, since it uses less digits than its factorization.

80195991995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26435.

The product of its (nonzero) digits is 11809800, while the sum is 65.

The spelling of 80195991995 in words is "eighty billion, one hundred ninety-five million, nine hundred ninety-one thousand, nine hundred ninety-five".