99355433761 has 2 divisors, whose sum is σ = 99355433762. Its totient is φ = 99355433760.

The previous prime is 99355433759. The next prime is 99355433791. The reversal of 99355433761 is 16733455399.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79816985361 + 19538448400 = 282519^2 + 139780^2 .

It is a cyclic number.

It is not a de Polignac number, because 99355433761 - 2¹ = 99355433759 is a prime.

Together with 99355433759, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (99355433791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49677716880 + 49677716881.

It is an arithmetic number, because the mean of its divisors is an integer number (49677716881).

Almost surely, 2^99355433761 is an apocalyptic number.

It is an amenable number.

99355433761 is a deficient number, since it is larger than the sum of its proper divisors (1).

99355433761 is an equidigital number, since it uses as much as digits as its factorization.

99355433761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9185400, while the sum is 55.

The spelling of 99355433761 in words is "ninety-nine billion, three hundred fifty-five million, four hundred thirty-three thousand, seven hundred sixty-one".