80567901121 has 2 divisors, whose sum is σ = 80567901122. Its totient is φ = 80567901120.

The previous prime is 80567901101. The next prime is 80567901163. The reversal of 80567901121 is 12110976508.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54538596225 + 26029304896 = 233535^2 + 161336^2 .

It is a cyclic number.

It is not a de Polignac number, because 80567901121 - 2¹¹ = 80567899073 is a prime.

It is not a weakly prime, because it can be changed into another prime (80567901101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40283950560 + 40283950561.

It is an arithmetic number, because the mean of its divisors is an integer number (40283950561).

Almost surely, 2^80567901121 is an apocalyptic number.

It is an amenable number.

80567901121 is a deficient number, since it is larger than the sum of its proper divisors (1).

80567901121 is an equidigital number, since it uses as much as digits as its factorization.

80567901121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 40.

The spelling of 80567901121 in words is "eighty billion, five hundred sixty-seven million, nine hundred one thousand, one hundred twenty-one".