2056321066 has 8 divisors (see below), whose sum is σ = 3100139460. Its totient is φ = 1022941248.

The previous prime is 2056321051. The next prime is 2056321087. The reversal of 2056321066 is 6601236502.

It can be written as a sum of positive squares in 2 ways, for example, as 2055262225 + 1058841 = 45335^2 + 1029^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2609151 + ... + 2609938.

Almost surely, 2^2056321066 is an apocalyptic number.

2056321066 is a deficient number, since it is larger than the sum of its proper divisors (1043818394).

2056321066 is a wasteful number, since it uses less digits than its factorization.

2056321066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5219288.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 2056321066 is about 45346.6764603537. The cubic root of 2056321066 is about 1271.6384222896.

Adding to 2056321066 its reverse (6601236502), we get a palindrome (8657557568).

The spelling of 2056321066 in words is "two billion, fifty-six million, three hundred twenty-one thousand, sixty-six".