99553000691 has 2 divisors, whose sum is σ = 99553000692. Its totient is φ = 99553000690.

The previous prime is 99553000633. The next prime is 99553000693. The reversal of 99553000691 is 19600035599.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99553000691 - 2²² = 99548806387 is a prime.

Together with 99553000693, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99553000693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49776500345 + 49776500346.

It is an arithmetic number, because the mean of its divisors is an integer number (49776500346).

Almost surely, 2^99553000691 is an apocalyptic number.

99553000691 is a deficient number, since it is larger than the sum of its proper divisors (1).

99553000691 is an equidigital number, since it uses as much as digits as its factorization.

99553000691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 328050, while the sum is 47.

The spelling of 99553000691 in words is "ninety-nine billion, five hundred fifty-three million, six hundred ninety-one", and thus it is an aban number.