2666431423475 has 6 divisors (see below), whose sum is σ = 3306374965140. Its totient is φ = 2133145138760.

The previous prime is 2666431423433. The next prime is 2666431423477. The reversal of 2666431423475 is 5743241346662.

It is not a de Polignac number, because 2666431423475 - 2¹⁶ = 2666431357939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2666431423477) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53328628445 + ... + 53328628494.

It is an arithmetic number, because the mean of its divisors is an integer number (551062494190).

Almost surely, 2^{2666431423475} is an apocalyptic number.

2666431423475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2666431423475 is a deficient number, since it is larger than the sum of its proper divisors (639943541665).

2666431423475 is a wasteful number, since it uses less digits than its factorization.

2666431423475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106657256949 (or 106657256944 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 53.

The spelling of 2666431423475 in words is "two trillion, six hundred sixty-six billion, four hundred thirty-one million, four hundred twenty-three thousand, four hundred seventy-five".