20677066 has 16 divisors (see below), whose sum is σ = 33606144. Its totient is φ = 9503424.

The previous prime is 20677061. The next prime is 20677067. The reversal of 20677066 is 66077602.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (20677061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5610 + ... + 8533.

It is an arithmetic number, because the mean of its divisors is an integer number (2100384).

Almost surely, 2^20677066 is an apocalyptic number.

20677066 is a deficient number, since it is larger than the sum of its proper divisors (12929078).

20677066 is a wasteful number, since it uses less digits than its factorization.

20677066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14205.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 20677066 is about 4547.2041959868. The cubic root of 20677066 is about 274.4708989137.

The spelling of 20677066 in words is "twenty million, six hundred seventy-seven thousand, sixty-six".