99883999669 has 2 divisors, whose sum is σ = 99883999670. Its totient is φ = 99883999668.

The previous prime is 99883999667. The next prime is 99883999697. The reversal of 99883999669 is 96699938899.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93813564100 + 6070435569 = 306290^2 + 77913^2 .

It is a cyclic number.

It is not a de Polignac number, because 99883999669 - 2¹ = 99883999667 is a prime.

It is a super-2 number, since 2×99883999669² (a number of 23 digits) contains 22 as substring.

Together with 99883999667, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99883999667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49941999834 + 49941999835.

It is an arithmetic number, because the mean of its divisors is an integer number (49941999835).

Almost surely, 2^99883999669 is an apocalyptic number.

It is an amenable number.

99883999669 is a deficient number, since it is larger than the sum of its proper divisors (1).

99883999669 is an equidigital number, since it uses as much as digits as its factorization.

99883999669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3673320192, while the sum is 85.

The spelling of 99883999669 in words is "ninety-nine billion, eight hundred eighty-three million, nine hundred ninety-nine thousand, six hundred sixty-nine".