20536314188 has 72 divisors (see below), whose sum is σ = 40446806400. Its totient is φ = 9109601280.

The previous prime is 20536314187. The next prime is 20536314223. The reversal of 20536314188 is 88141363502.

It is not an unprimeable number, because it can be changed into a prime (20536314181) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3119156 + ... + 3125732.

It is an arithmetic number, because the mean of its divisors is an integer number (561761200).

Almost surely, 2^20536314188 is an apocalyptic number.

It is an amenable number.

20536314188 is a deficient number, since it is larger than the sum of its proper divisors (19910492212).

20536314188 is a wasteful number, since it uses less digits than its factorization.

20536314188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6787 (or 6772 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The spelling of 20536314188 in words is "twenty billion, five hundred thirty-six million, three hundred fourteen thousand, one hundred eighty-eight".