20832666 has 16 divisors (see below), whose sum is σ = 41793024. Its totient is φ = 6922944.

The previous prime is 20832653. The next prime is 20832671. The reversal of 20832666 is 66623802.

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, 3130 + ... + 7173.

It is an arithmetic number, because the mean of its divisors is an integer number (2612064).

Almost surely, 2^20832666 is an apocalyptic number.

20832666 is an abundant number, since it is smaller than the sum of its proper divisors (20960358).

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

20832666 is a wasteful number, since it uses less digits than its factorization.

20832666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10645.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 20832666 is about 4564.2815425870. The cubic root of 20832666 is about 275.1576660617.

The spelling of 20832666 in words is "twenty million, eight hundred thirty-two thousand, six hundred sixty-six".