20966662 has 16 divisors (see below), whose sum is σ = 33620832. Its totient is φ = 9782080.

The previous prime is 20966657. The next prime is 20966663. The reversal of 20966662 is 26666902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20966663) 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, 3673 + ... + 7444.

It is an arithmetic number, because the mean of its divisors is an integer number (2101302).

Almost surely, 2^20966662 is an apocalyptic number.

20966662 is a deficient number, since it is larger than the sum of its proper divisors (12654170).

20966662 is a wasteful number, since it uses less digits than its factorization.

20966662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11183.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 20966662 is about 4578.9367761523. The cubic root of 20966662 is about 275.7463450523.

The spelling of 20966662 in words is "twenty million, nine hundred sixty-six thousand, six hundred sixty-two".