99388616671 has 2 divisors, whose sum is σ = 99388616672. Its totient is φ = 99388616670.

The previous prime is 99388616647. The next prime is 99388616711. The reversal of 99388616671 is 17661688399.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99388616671 - 2⁷ = 99388616543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99388646671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49694308335 + 49694308336.

It is an arithmetic number, because the mean of its divisors is an integer number (49694308336).

Almost surely, 2^99388616671 is an apocalyptic number.

99388616671 is a deficient number, since it is larger than the sum of its proper divisors (1).

99388616671 is an equidigital number, since it uses as much as digits as its factorization.

99388616671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23514624, while the sum is 64.

The spelling of 99388616671 in words is "ninety-nine billion, three hundred eighty-eight million, six hundred sixteen thousand, six hundred seventy-one".