99966654 has 24 divisors (see below), whose sum is σ = 224064360. Its totient is φ = 32173008.

The previous prime is 99966631. The next prime is 99966673. The reversal of 99966654 is 45666999.

It is a happy number.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 99966654.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95232 + ... + 96275.

It is an arithmetic number, because the mean of its divisors is an integer number (9336015).

Almost surely, 2^99966654 is an apocalyptic number.

99966654 is an abundant number, since it is smaller than the sum of its proper divisors (124097706).

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

99966654 is a wasteful number, since it uses less digits than its factorization.

99966654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191544 (or 191541 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 54.

The square root of 99966654 is about 9998.3325609824. The cubic root of 99966654 is about 464.1072848184.

The spelling of 99966654 in words is "ninety-nine million, nine hundred sixty-six thousand, six hundred fifty-four".