20017010475 has 144 divisors (see below), whose sum is σ = 45331812864. Its totient is φ = 8201088000.

The previous prime is 20017010437. The next prime is 20017010477. The reversal of 20017010475 is 57401071002.

20017010475 is a `hidden beast` number, since 20 + 0 + 170 + 1 + 0 + 475 = 666.

It is not a de Polignac number, because 20017010475 - 2⁶ = 20017010411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20017010477) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1221939 + ... + 1238211.

It is an arithmetic number, because the mean of its divisors is an integer number (314804256).

Almost surely, 2^20017010475 is an apocalyptic number.

20017010475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20017010475 is an abundant number, since it is smaller than the sum of its proper divisors (25314802389).

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

20017010475 is a wasteful number, since it uses less digits than its factorization.

20017010475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16378 (or 16370 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

Adding to 20017010475 its reverse (57401071002), we get a palindrome (77418081477).

The spelling of 20017010475 in words is "twenty billion, seventeen million, ten thousand, four hundred seventy-five".