20017071470 has 64 divisors (see below), whose sum is σ = 40260084480. Its totient is φ = 7102636800.

The previous prime is 20017071469. The next prime is 20017071479. The reversal of 20017071470 is 7417071002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20017071479) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8139101 + ... + 8141559.

It is an arithmetic number, because the mean of its divisors is an integer number (629063820).

Almost surely, 2^20017071470 is an apocalyptic number.

20017071470 is an abundant number, since it is smaller than the sum of its proper divisors (20243013010).

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

20017071470 is a wasteful number, since it uses less digits than its factorization.

20017071470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4241.

The product of its (nonzero) digits is 2744, while the sum is 29.

The spelling of 20017071470 in words is "twenty billion, seventeen million, seventy-one thousand, four hundred seventy".