99161625811 has 2 divisors, whose sum is σ = 99161625812. Its totient is φ = 99161625810.

The previous prime is 99161625809. The next prime is 99161625833. The reversal of 99161625811 is 11852616199.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99161625811 - 2¹ = 99161625809 is a prime.

Together with 99161625809, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (99161625611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49580812905 + 49580812906.

It is an arithmetic number, because the mean of its divisors is an integer number (49580812906).

Almost surely, 2^99161625811 is an apocalyptic number.

99161625811 is a deficient number, since it is larger than the sum of its proper divisors (1).

99161625811 is an equidigital number, since it uses as much as digits as its factorization.

99161625811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 49.

The spelling of 99161625811 in words is "ninety-nine billion, one hundred sixty-one million, six hundred twenty-five thousand, eight hundred eleven".