20736906966 has 24 divisors (see below), whose sum is σ = 44933586984. Its totient is φ = 6911745120.

The previous prime is 20736906929. The next prime is 20736906997. The reversal of 20736906966 is 66960963702.

It is a happy number.

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, 226386 + ... + 304506.

It is an arithmetic number, because the mean of its divisors is an integer number (1872232791).

Almost surely, 2^20736906966 is an apocalyptic number.

20736906966 is an abundant number, since it is smaller than the sum of its proper divisors (24196680018).

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

20736906966 is a wasteful number, since it uses less digits than its factorization.

20736906966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92876 (or 92873 counting only the distinct ones).

The product of its (nonzero) digits is 4408992, while the sum is 54.

The spelling of 20736906966 in words is "twenty billion, seven hundred thirty-six million, nine hundred six thousand, nine hundred sixty-six".