20088684064 has 24 divisors (see below), whose sum is σ = 40514223708. Its totient is φ = 9799357440.

The previous prime is 20088684061. The next prime is 20088684079. The reversal of 20088684064 is 46048688002.

It can be written as a sum of positive squares in 2 ways, for example, as 16152376464 + 3936307600 = 127092^2 + 62740^2 .

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (20088684061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7654437 + ... + 7657060.

Almost surely, 2^20088684064 is an apocalyptic number.

It is an amenable number.

20088684064 is an abundant number, since it is smaller than the sum of its proper divisors (20425539644).

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

20088684064 is a wasteful number, since it uses less digits than its factorization.

20088684064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15311548 (or 15311540 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 46.

The spelling of 20088684064 in words is "twenty billion, eighty-eight million, six hundred eighty-four thousand, sixty-four".