99165849637 has 2 divisors, whose sum is σ = 99165849638. Its totient is φ = 99165849636.

The previous prime is 99165849623. The next prime is 99165849677. The reversal of 99165849637 is 73694856199.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98818437316 + 347412321 = 314354^2 + 18639^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99165849637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99165849677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49582924818 + 49582924819.

It is an arithmetic number, because the mean of its divisors is an integer number (49582924819).

Almost surely, 2^99165849637 is an apocalyptic number.

It is an amenable number.

99165849637 is a deficient number, since it is larger than the sum of its proper divisors (1).

99165849637 is an equidigital number, since it uses as much as digits as its factorization.

99165849637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88179840, while the sum is 67.

The spelling of 99165849637 in words is "ninety-nine billion, one hundred sixty-five million, eight hundred forty-nine thousand, six hundred thirty-seven".