99165849677 has 2 divisors, whose sum is σ = 99165849678. Its totient is φ = 99165849676.

The previous prime is 99165849637. The next prime is 99165849719. The reversal of 99165849677 is 77694856199.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83039643556 + 16126206121 = 288166^2 + 126989^2 .

It is a cyclic number.

It is not a de Polignac number, because 99165849677 - 2⁶ = 99165849613 is a prime.

It is a super-2 number, since 2×99165849677² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 99165849677.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99165849637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49582924838 + 49582924839.

It is an arithmetic number, because the mean of its divisors is an integer number (49582924839).

Almost surely, 2^99165849677 is an apocalyptic number.

It is an amenable number.

99165849677 is a deficient number, since it is larger than the sum of its proper divisors (1).

99165849677 is an equidigital number, since it uses as much as digits as its factorization.

99165849677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 205752960, while the sum is 71.

The spelling of 99165849677 in words is "ninety-nine billion, one hundred sixty-five million, eight hundred forty-nine thousand, six hundred seventy-seven".