20704417475 has 12 divisors (see below), whose sum is σ = 29341117584. Its totient is φ = 14197314720.

The previous prime is 20704417451. The next prime is 20704417493. The reversal of 20704417475 is 57471440702.

It is not a de Polignac number, because 20704417475 - 2¹⁶ = 20704351939 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59155304 + ... + 59155653.

It is an arithmetic number, because the mean of its divisors is an integer number (2445093132).

Almost surely, 2^20704417475 is an apocalyptic number.

20704417475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20704417475 is a deficient number, since it is larger than the sum of its proper divisors (8636700109).

20704417475 is a wasteful number, since it uses less digits than its factorization.

20704417475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118310974 (or 118310969 counting only the distinct ones).

The product of its (nonzero) digits is 219520, while the sum is 41.

The spelling of 20704417475 in words is "twenty billion, seven hundred four million, four hundred seventeen thousand, four hundred seventy-five".