20216770006 has 24 divisors (see below), whose sum is σ = 31205514384. Its totient is φ = 9822834000.

The previous prime is 20216769983. The next prime is 20216770019. The reversal of 20216770006 is 60007761202.

It is a self number, because there is not a number n which added to its sum of digits gives 20216770006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 714631 + ... + 742381.

It is an arithmetic number, because the mean of its divisors is an integer number (1300229766).

Almost surely, 2^20216770006 is an apocalyptic number.

20216770006 is a deficient number, since it is larger than the sum of its proper divisors (10988744378).

20216770006 is a wasteful number, since it uses less digits than its factorization.

20216770006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28036 (or 27993 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The spelling of 20216770006 in words is "twenty billion, two hundred sixteen million, seven hundred seventy thousand, six".