2666322431 has 8 divisors (see below), whose sum is σ = 2783260800. Its totient is φ = 2551317120.

The previous prime is 2666322413. The next prime is 2666322473. The reversal of 2666322431 is 1342236662.

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

It is a cyclic number.

It is not a de Polignac number, because 2666322431 - 2⁶ = 2666322367 is a prime.

It is a super-2 number, since 2×2666322431² = 14218550612107499522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2666322391 and 2666322400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666322481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 480446 + ... + 485963.

It is an arithmetic number, because the mean of its divisors is an integer number (347907600).

Almost surely, 2^2666322431 is an apocalyptic number.

2666322431 is a deficient number, since it is larger than the sum of its proper divisors (116938369).

2666322431 is an equidigital number, since it uses as much as digits as its factorization.

2666322431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966529.

The product of its digits is 62208, while the sum is 35.

The square root of 2666322431 is about 51636.4447943504. Note that the first 3 decimals coincide. The cubic root of 2666322431 is about 1386.6628762134.

It can be divided in two parts, 26663 and 22431, that added together give a palindrome (49094).

The spelling of 2666322431 in words is "two billion, six hundred sixty-six million, three hundred twenty-two thousand, four hundred thirty-one".