80091164641 has 2 divisors, whose sum is σ = 80091164642. Its totient is φ = 80091164640.

The previous prime is 80091164611. The next prime is 80091164687. The reversal of 80091164641 is 14646119008.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68188354641 + 11902810000 = 261129^2 + 109100^2 .

It is a cyclic number.

It is not a de Polignac number, because 80091164641 - 2¹⁷ = 80091033569 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80091164594 and 80091164603.

It is not a weakly prime, because it can be changed into another prime (80091164611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40045582320 + 40045582321.

It is an arithmetic number, because the mean of its divisors is an integer number (40045582321).

Almost surely, 2^80091164641 is an apocalyptic number.

It is an amenable number.

80091164641 is a deficient number, since it is larger than the sum of its proper divisors (1).

80091164641 is an equidigital number, since it uses as much as digits as its factorization.

80091164641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 40.

The spelling of 80091164641 in words is "eighty billion, ninety-one million, one hundred sixty-four thousand, six hundred forty-one".