161143754599 has 2 divisors, whose sum is σ = 161143754600. Its totient is φ = 161143754598.

The previous prime is 161143754587. The next prime is 161143754621. The reversal of 161143754599 is 995457341161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161143754599 - 2⁵ = 161143754567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161143754549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80571877299 + 80571877300.

It is an arithmetic number, because the mean of its divisors is an integer number (80571877300).

Almost surely, 2^161143754599 is an apocalyptic number.

161143754599 is a deficient number, since it is larger than the sum of its proper divisors (1).

161143754599 is an equidigital number, since it uses as much as digits as its factorization.

161143754599 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4082400, while the sum is 55.

The spelling of 161143754599 in words is "one hundred sixty-one billion, one hundred forty-three million, seven hundred fifty-four thousand, five hundred ninety-nine".