99168311 has 4 divisors (see below), whose sum is σ = 108183624. Its totient is φ = 90153000.

The previous prime is 99168301. The next prime is 99168337. The reversal of 99168311 is 11386199.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99168311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99168301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4507640 + ... + 4507661.

It is an arithmetic number, because the mean of its divisors is an integer number (27045906).

Almost surely, 2^99168311 is an apocalyptic number.

99168311 is the 4454-th centered decagonal number.

99168311 is a deficient number, since it is larger than the sum of its proper divisors (9015313).

99168311 is a wasteful number, since it uses less digits than its factorization.

99168311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9015312.

The product of its digits is 11664, while the sum is 38.

The square root of 99168311 is about 9958.3287252430. The cubic root of 99168311 is about 462.8685133084.

The spelling of 99168311 in words is "ninety-nine million, one hundred sixty-eight thousand, three hundred eleven".