20622245766 has 16 divisors (see below), whose sum is σ = 41521302000. Its totient is φ = 6827946848.

The previous prime is 20622245759. The next prime is 20622245797. The reversal of 20622245766 is 66754222602.

It is a congruent 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, 11532801 + ... + 11534588.

It is an arithmetic number, because the mean of its divisors is an integer number (2595081375).

Almost surely, 2^20622245766 is an apocalyptic number.

20622245766 is an abundant number, since it is smaller than the sum of its proper divisors (20899056234).

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

20622245766 is a wasteful number, since it uses less digits than its factorization.

20622245766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23067543.

The product of its (nonzero) digits is 483840, while the sum is 42.

The spelling of 20622245766 in words is "twenty billion, six hundred twenty-two million, two hundred forty-five thousand, seven hundred sixty-six".