20216768622 has 16 divisors (see below), whose sum is σ = 40435234560. Its totient is φ = 6738639992.

The previous prime is 20216768617. The next prime is 20216768623. The reversal of 20216768622 is 22686761202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20216768623) 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, 126379 + ... + 237497.

It is an arithmetic number, because the mean of its divisors is an integer number (2527202160).

Almost surely, 2^20216768622 is an apocalyptic number.

20216768622 is an abundant number, since it is smaller than the sum of its proper divisors (20218465938).

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

20216768622 is a wasteful number, since it uses less digits than its factorization.

20216768622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141447.

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 20216768622 in words is "twenty billion, two hundred sixteen million, seven hundred sixty-eight thousand, six hundred twenty-two".