3261545663 has 2 divisors, whose sum is σ = 3261545664. Its totient is φ = 3261545662.

The previous prime is 3261545629. The next prime is 3261545689. The reversal of 3261545663 is 3665451623.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3261545663 - 2¹⁶ = 3261480127 is a prime.

It is a super-2 number, since 2×3261545663² = 21275360223668219138, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3261545663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3261545603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1630772831 + 1630772832.

It is an arithmetic number, because the mean of its divisors is an integer number (1630772832).

Almost surely, 2^3261545663 is an apocalyptic number.

3261545663 is a deficient number, since it is larger than the sum of its proper divisors (1).

3261545663 is an equidigital number, since it uses as much as digits as its factorization.

3261545663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 41.

The square root of 3261545663 is about 57109.9436438174. The cubic root of 3261545663 is about 1483.0000115189. Note that the first 4 decimals are identical.

The spelling of 3261545663 in words is "three billion, two hundred sixty-one million, five hundred forty-five thousand, six hundred sixty-three".