20087066 has 16 divisors (see below), whose sum is σ = 31832160. Its totient is φ = 9480240.

The previous prime is 20087059. The next prime is 20087083. The reversal of 20087066 is 66078002.

It is a Curzon number.

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, 11780 + ... + 13376.

It is an arithmetic number, because the mean of its divisors is an integer number (1989510).

Almost surely, 2^20087066 is an apocalyptic number.

20087066 is a deficient number, since it is larger than the sum of its proper divisors (11745094).

20087066 is a wasteful number, since it uses less digits than its factorization.

20087066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1949.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 20087066 is about 4481.8596586685. The cubic root of 20087066 is about 271.8350806057.

The spelling of 20087066 in words is "twenty million, eighty-seven thousand, sixty-six".