99566351 has 4 divisors (see below), whose sum is σ = 101684832. Its totient is φ = 97447872.

The previous prime is 99566323. The next prime is 99566359. The reversal of 99566351 is 15366599.

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-99566351 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 (99566359) 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, 1059170 + ... + 1059263.

It is an arithmetic number, because the mean of its divisors is an integer number (25421208).

Almost surely, 2^99566351 is an apocalyptic number.

99566351 is a deficient number, since it is larger than the sum of its proper divisors (2118481).

99566351 is a wasteful number, since it uses less digits than its factorization.

99566351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2118480.

The product of its digits is 218700, while the sum is 44.

The square root of 99566351 is about 9978.2939924618. The cubic root of 99566351 is about 463.4869710576.

The spelling of 99566351 in words is "ninety-nine million, five hundred sixty-six thousand, three hundred fifty-one".