99944566 has 8 divisors (see below), whose sum is σ = 150670800. Its totient is φ = 49720968.

The previous prime is 99944561. The next prime is 99944567. The reversal of 99944566 is 66544999.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99944561) 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, 125161 + ... + 125956.

It is an arithmetic number, because the mean of its divisors is an integer number (18833850).

Almost surely, 2^99944566 is an apocalyptic number.

99944566 is a deficient number, since it is larger than the sum of its proper divisors (50726234).

99944566 is a wasteful number, since it uses less digits than its factorization.

99944566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251318.

The product of its digits is 2099520, while the sum is 52.

The square root of 99944566 is about 9997.2279157775. The cubic root of 99944566 is about 464.0731002299.

The spelling of 99944566 in words is "ninety-nine million, nine hundred forty-four thousand, five hundred sixty-six".