10656143423 has 4 divisors (see below), whose sum is σ = 10680753888. Its totient is φ = 10631532960.

The previous prime is 10656143413. The next prime is 10656143431. The reversal of 10656143423 is 32434165601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10656143423 is a prime.

It is a super-2 number, since 2×10656143423² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10656143413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12304583 + ... + 12305448.

It is an arithmetic number, because the mean of its divisors is an integer number (2670188472).

Almost surely, 2^10656143423 is an apocalyptic number.

10656143423 is a deficient number, since it is larger than the sum of its proper divisors (24610465).

10656143423 is an equidigital number, since it uses as much as digits as its factorization.

10656143423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24610464.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 10656143423 in words is "ten billion, six hundred fifty-six million, one hundred forty-three thousand, four hundred twenty-three".