124989666 has 16 divisors (see below), whose sum is σ = 250227264. Its totient is φ = 41621904.

The previous prime is 124989653. The next prime is 124989673. The reversal of 124989666 is 666989421.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3421 + ... + 16176.

It is an arithmetic number, because the mean of its divisors is an integer number (15639204).

Almost surely, 2^124989666 is an apocalyptic number.

124989666 is an abundant number, since it is smaller than the sum of its proper divisors (125237598).

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

124989666 is a wasteful number, since it uses less digits than its factorization.

124989666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20665.

The product of its digits is 1119744, while the sum is 51.

The square root of 124989666 is about 11179.8777274172. The cubic root of 124989666 is about 499.9862209536.

The spelling of 124989666 in words is "one hundred twenty-four million, nine hundred eighty-nine thousand, six hundred sixty-six".