99966111 has 8 divisors (see below), whose sum is σ = 152329344. Its totient is φ = 57123480.

The previous prime is 99966101. The next prime is 99966121. The reversal of 99966111 is 11166999.

It is an interprime number because it is at equal distance from previous prime (99966101) and next prime (99966121).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 99966111 - 2²⁶ = 32857247 is a prime.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99966101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2380125 + ... + 2380166.

It is an arithmetic number, because the mean of its divisors is an integer number (19041168).

Almost surely, 2^99966111 is an apocalyptic number.

99966111 is a deficient number, since it is larger than the sum of its proper divisors (52363233).

99966111 is a wasteful number, since it uses less digits than its factorization.

99966111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4760301.

The product of its digits is 26244, while the sum is 42.

The square root of 99966111 is about 9998.3054064176. The cubic root of 99966111 is about 464.1064445025.

The spelling of 99966111 in words is "ninety-nine million, nine hundred sixty-six thousand, one hundred eleven".