99365577361 has 2 divisors, whose sum is σ = 99365577362. Its totient is φ = 99365577360.

The previous prime is 99365577349. The next prime is 99365577403. The reversal of 99365577361 is 16377556399.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97871368336 + 1494209025 = 312844^2 + 38655^2 .

It is a cyclic number.

It is not a de Polignac number, because 99365577361 - 2¹³ = 99365569169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99365577361.

It is not a weakly prime, because it can be changed into another prime (99365577761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49682788680 + 49682788681.

It is an arithmetic number, because the mean of its divisors is an integer number (49682788681).

Almost surely, 2^99365577361 is an apocalyptic number.

It is an amenable number.

99365577361 is a deficient number, since it is larger than the sum of its proper divisors (1).

99365577361 is an equidigital number, since it uses as much as digits as its factorization.

99365577361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32148900, while the sum is 61.

The spelling of 99365577361 in words is "ninety-nine billion, three hundred sixty-five million, five hundred seventy-seven thousand, three hundred sixty-one".