20020622666 has 16 divisors (see below), whose sum is σ = 32944047840. Its totient is φ = 9049441680.

The previous prime is 20020622663. The next prime is 20020622689. The reversal of 20020622666 is 66622602002.

It is not an unprimeable number, because it can be changed into a prime (20020622663) 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, 2538041 + ... + 2545916.

It is an arithmetic number, because the mean of its divisors is an integer number (2059002990).

Almost surely, 2^20020622666 is an apocalyptic number.

20020622666 is a deficient number, since it is larger than the sum of its proper divisors (12923425174).

20020622666 is a wasteful number, since it uses less digits than its factorization.

20020622666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5084149.

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 20020622666 in words is "twenty billion, twenty million, six hundred twenty-two thousand, six hundred sixty-six".