3261563166 has 16 divisors (see below), whose sum is σ = 6559167888. Its totient is φ = 1081180800.

The previous prime is 3261563159. The next prime is 3261563197. The reversal of 3261563166 is 6613651623.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1500555 + ... + 1502726.

It is an arithmetic number, because the mean of its divisors is an integer number (409947993).

Almost surely, 2^3261563166 is an apocalyptic number.

3261563166 is an abundant number, since it is smaller than the sum of its proper divisors (3297604722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3261563166 is a wasteful number, since it uses less digits than its factorization.

3261563166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3003467.

The product of its digits is 116640, while the sum is 39.

The square root of 3261563166 is about 57110.0968831257. The cubic root of 3261563166 is about 1483.0026643411.

The spelling of 3261563166 in words is "three billion, two hundred sixty-one million, five hundred sixty-three thousand, one hundred sixty-six".