20776370916 has 48 divisors (see below), whose sum is σ = 55543300736. Its totient is φ = 5921144064.

The previous prime is 20776370899. The next prime is 20776370921. The reversal of 20776370916 is 61907367702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278161 + ... + 344856.

Almost surely, 2^20776370916 is an apocalyptic number.

It is an amenable number.

20776370916 is an abundant number, since it is smaller than the sum of its proper divisors (34766929820).

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

20776370916 is a wasteful number, since it uses less digits than its factorization.

20776370916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623428 (or 623426 counting only the distinct ones).

The product of its (nonzero) digits is 666792, while the sum is 48.

The spelling of 20776370916 in words is "twenty billion, seven hundred seventy-six million, three hundred seventy thousand, nine hundred sixteen".