80164986997 has 2 divisors, whose sum is σ = 80164986998. Its totient is φ = 80164986996.

The previous prime is 80164986959. The next prime is 80164987031. The reversal of 80164986997 is 79968946108.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63668410276 + 16496576721 = 252326^2 + 128439^2 .

It is a cyclic number.

It is not a de Polignac number, because 80164986997 - 2¹⁵ = 80164954229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80164986907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40082493498 + 40082493499.

It is an arithmetic number, because the mean of its divisors is an integer number (40082493499).

Almost surely, 2^80164986997 is an apocalyptic number.

It is an amenable number.

80164986997 is a deficient number, since it is larger than the sum of its proper divisors (1).

80164986997 is an equidigital number, since it uses as much as digits as its factorization.

80164986997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47029248, while the sum is 67.

The spelling of 80164986997 in words is "eighty billion, one hundred sixty-four million, nine hundred eighty-six thousand, nine hundred ninety-seven".