99966582 has 32 divisors (see below), whose sum is σ = 222645600. Its totient is φ = 33247584.

The previous prime is 99966577. The next prime is 99966583. The reversal of 99966582 is 28566999.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99966583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25668 + ... + 29304.

It is an arithmetic number, because the mean of its divisors is an integer number (6957675).

Almost surely, 2^99966582 is an apocalyptic number.

99966582 is an abundant number, since it is smaller than the sum of its proper divisors (122679018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99966582 is a wasteful number, since it uses less digits than its factorization.

99966582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4157 (or 4151 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 54.

The square root of 99966582 is about 9998.3289603813. The cubic root of 99966582 is about 464.1071733955.

The spelling of 99966582 in words is "ninety-nine million, nine hundred sixty-six thousand, five hundred eighty-two".