20359975105 has 8 divisors (see below), whose sum is σ = 24484970664. Its totient is φ = 16252646400.

The previous prime is 20359975091. The next prime is 20359975117. The reversal of 20359975105 is 50157995302.

It can be written as a sum of positive squares in 4 ways, for example, as 860366224 + 19499608881 = 29332^2 + 139641^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20359975105 - 2⁷ = 20359974977 is a prime.

It is a super-2 number, since 2×20359975105² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4414176 + ... + 4418785.

It is an arithmetic number, because the mean of its divisors is an integer number (3060621333).

Almost surely, 2^20359975105 is an apocalyptic number.

It is an amenable number.

20359975105 is a deficient number, since it is larger than the sum of its proper divisors (4124995559).

20359975105 is an equidigital number, since it uses as much as digits as its factorization.

20359975105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8833427.

The product of its (nonzero) digits is 425250, while the sum is 46.

The spelling of 20359975105 in words is "twenty billion, three hundred fifty-nine million, nine hundred seventy-five thousand, one hundred five".