99883763168561 has 2 divisors, whose sum is σ = 99883763168562. Its totient is φ = 99883763168560.

The previous prime is 99883763168549. The next prime is 99883763168569. The reversal of 99883763168561 is 16586136738899.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88244305096336 + 11639458072225 = 9393844^2 + 3411665^2 .

It is a cyclic number.

It is not a de Polignac number, because 99883763168561 - 2³⁴ = 99866583299377 is a prime.

It is a super-2 number, since 2×99883763168561² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (99883763168569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49941881584280 + 49941881584281.

It is an arithmetic number, because the mean of its divisors is an integer number (49941881584281).

Almost surely, 2^{99883763168561} is an apocalyptic number.

It is an amenable number.

99883763168561 is a deficient number, since it is larger than the sum of its proper divisors (1).

99883763168561 is an equidigital number, since it uses as much as digits as its factorization.

99883763168561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2821754880, while the sum is 80.

The spelling of 99883763168561 in words is "ninety-nine trillion, eight hundred eighty-three billion, seven hundred sixty-three million, one hundred sixty-eight thousand, five hundred sixty-one".