20105425675 has 6 divisors (see below), whose sum is σ = 24930727868. Its totient is φ = 16084340520.

The previous prime is 20105425667. The next prime is 20105425709. The reversal of 20105425675 is 57652450102.

It is not a de Polignac number, because 20105425675 - 2³ = 20105425667 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 402108489 + ... + 402108538.

Almost surely, 2^20105425675 is an apocalyptic number.

20105425675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20105425675 is a deficient number, since it is larger than the sum of its proper divisors (4825302193).

20105425675 is an equidigital number, since it uses as much as digits as its factorization.

20105425675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804217037 (or 804217032 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 37.

Adding to 20105425675 its reverse (57652450102), we get a palindrome (77757875777).

The spelling of 20105425675 in words is "twenty billion, one hundred five million, four hundred twenty-five thousand, six hundred seventy-five".