99320661 has 48 divisors (see below), whose sum is σ = 164848320. Its totient is φ = 59253120.

The previous prime is 99320653. The next prime is 99320699. The reversal of 99320661 is 16602399.

It is not a de Polignac number, because 99320661 - 2³ = 99320653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99320651) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 194875 + ... + 195383.

It is an arithmetic number, because the mean of its divisors is an integer number (3434340).

Almost surely, 2^99320661 is an apocalyptic number.

It is an amenable number.

99320661 is a deficient number, since it is larger than the sum of its proper divisors (65527659).

99320661 is a wasteful number, since it uses less digits than its factorization.

99320661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608 (or 596 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 99320661 is about 9965.9751655320. The cubic root of 99320661 is about 463.1054234542.

The spelling of 99320661 in words is "ninety-nine million, three hundred twenty thousand, six hundred sixty-one".