80143717081 has 2 divisors, whose sum is σ = 80143717082. Its totient is φ = 80143717080.

The previous prime is 80143717061. The next prime is 80143717109. The reversal of 80143717081 is 18071734108.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66522726400 + 13620990681 = 257920^2 + 116709^2 .

It is a cyclic number.

It is not a de Polignac number, because 80143717081 - 2¹¹ = 80143715033 is a prime.

It is a super-2 number, since 2×80143717081² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80143717061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40071858540 + 40071858541.

It is an arithmetic number, because the mean of its divisors is an integer number (40071858541).

Almost surely, 2^80143717081 is an apocalyptic number.

It is an amenable number.

80143717081 is a deficient number, since it is larger than the sum of its proper divisors (1).

80143717081 is an equidigital number, since it uses as much as digits as its factorization.

80143717081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37632, while the sum is 40.

The spelling of 80143717081 in words is "eighty billion, one hundred forty-three million, seven hundred seventeen thousand, eighty-one".