2056646343 has 4 divisors (see below), whose sum is σ = 2742195128. Its totient is φ = 1371097560.

The previous prime is 2056646341. The next prime is 2056646357. The reversal of 2056646343 is 3436466502.

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

It is not a de Polignac number, because 2056646343 - 2¹ = 2056646341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2056646341) 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, 342774388 + ... + 342774393.

It is an arithmetic number, because the mean of its divisors is an integer number (685548782).

Almost surely, 2^2056646343 is an apocalyptic number.

2056646343 is a deficient number, since it is larger than the sum of its proper divisors (685548785).

2056646343 is an equidigital number, since it uses as much as digits as its factorization.

2056646343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685548784.

The product of its (nonzero) digits is 311040, while the sum is 39.

The square root of 2056646343 is about 45350.2628768566. The cubic root of 2056646343 is about 1271.7054696863.

The spelling of 2056646343 in words is "two billion, fifty-six million, six hundred forty-six thousand, three hundred forty-three".