20656420622 has 8 divisors (see below), whose sum is σ = 32807256336. Its totient is φ = 9720668512.

The previous prime is 20656420613. The next prime is 20656420633. The reversal of 20656420622 is 22602465602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303770858 + ... + 303770925.

It is an arithmetic number, because the mean of its divisors is an integer number (4100907042).

Almost surely, 2^20656420622 is an apocalyptic number.

20656420622 is a deficient number, since it is larger than the sum of its proper divisors (12150835714).

20656420622 is a wasteful number, since it uses less digits than its factorization.

20656420622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607541802.

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 20656420622 in words is "twenty billion, six hundred fifty-six million, four hundred twenty thousand, six hundred twenty-two".