20930563662 has 16 divisors (see below), whose sum is σ = 41902220160. Its totient is φ = 6970005752.

The previous prime is 20930563657. The next prime is 20930563747. The reversal of 20930563662 is 26636503902.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 1705578 + ... + 1717805.

It is an arithmetic number, because the mean of its divisors is an integer number (2618888760).

Almost surely, 2^20930563662 is an apocalyptic number.

20930563662 is an abundant number, since it is smaller than the sum of its proper divisors (20971656498).

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

20930563662 is a wasteful number, since it uses less digits than its factorization.

20930563662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3424407.

The product of its (nonzero) digits is 349920, while the sum is 42.

The spelling of 20930563662 in words is "twenty billion, nine hundred thirty million, five hundred sixty-three thousand, six hundred sixty-two".