105666064975 has 6 divisors (see below), whose sum is σ = 131025920600. Its totient is φ = 84532851960.

The previous prime is 105666064883. The next prime is 105666065023. The reversal of 105666064975 is 579460666501.

It is a de Polignac number, because none of the positive numbers 2^k-105666064975 is a prime.

It is a super-2 number, since 2×105666064975² (a number of 23 digits) contains 22 as substring.

It is a congruent 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, 2113321275 + ... + 2113321324.

Almost surely, 2^105666064975 is an apocalyptic number.

105666064975 is a deficient number, since it is larger than the sum of its proper divisors (25359855625).

105666064975 is an equidigital number, since it uses as much as digits as its factorization.

105666064975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4226642609 (or 4226642604 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 55.

The spelling of 105666064975 in words is "one hundred five billion, six hundred sixty-six million, sixty-four thousand, nine hundred seventy-five".