20855662 has 16 divisors (see below), whose sum is σ = 31909392. Its totient is φ = 10221120.

The previous prime is 20855657. The next prime is 20855663. The reversal of 20855662 is 26655802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20855663) 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, 30468 + ... + 31144.

It is an arithmetic number, because the mean of its divisors is an integer number (1994337).

Almost surely, 2^20855662 is an apocalyptic number.

20855662 is a deficient number, since it is larger than the sum of its proper divisors (11053730).

20855662 is a wasteful number, since it uses less digits than its factorization.

20855662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 20855662 is about 4566.7999737234. The cubic root of 20855662 is about 275.2588724862.

The spelling of 20855662 in words is "twenty million, eight hundred fifty-five thousand, six hundred sixty-two".