3256566101 has 4 divisors (see below), whose sum is σ = 3259217100. Its totient is φ = 3253915104.

The previous prime is 3256566041. The next prime is 3256566109. The reversal of 3256566101 is 1016656523.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1016656523 = 89 ⋅11423107.

It can be written as a sum of positive squares in 2 ways, for example, as 1814845201 + 1441720900 = 42601^2 + 37970^2 .

It is a cyclic number.

It is not a de Polignac number, because 3256566101 - 2⁶ = 3256566037 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 (3256566109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1323656 + ... + 1326113.

It is an arithmetic number, because the mean of its divisors is an integer number (814804275).

Almost surely, 2^3256566101 is an apocalyptic number.

It is an amenable number.

3256566101 is a deficient number, since it is larger than the sum of its proper divisors (2650999).

3256566101 is a wasteful number, since it uses less digits than its factorization.

3256566101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2650998.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 3256566101 is about 57066.3307126015. The cubic root of 3256566101 is about 1482.2449041099.

The spelling of 3256566101 in words is "three billion, two hundred fifty-six million, five hundred sixty-six thousand, one hundred one".