20571700002 has 32 divisors (see below), whose sum is σ = 47036934144. Its totient is φ = 5875640400.

The previous prime is 20571699971. The next prime is 20571700027. The reversal of 20571700002 is 20000717502.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45127 + ... + 207797.

It is an arithmetic number, because the mean of its divisors is an integer number (1469904192).

Almost surely, 2^20571700002 is an apocalyptic number.

20571700002 is an abundant number, since it is smaller than the sum of its proper divisors (26465234142).

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

20571700002 is a wasteful number, since it uses less digits than its factorization.

20571700002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165694.

The product of its (nonzero) digits is 980, while the sum is 24.

The spelling of 20571700002 in words is "twenty billion, five hundred seventy-one million, seven hundred thousand, two".