3261108816 has 80 divisors (see below), whose sum is σ = 10697827200. Its totient is φ = 931744512.

The previous prime is 3261108811. The next prime is 3261108817. The reversal of 3261108816 is 6188011623.

3261108816 is a `hidden beast` number, since 32 + 611 + 0 + 8 + 8 + 1 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3261108811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 536181 + ... + 542228.

It is an arithmetic number, because the mean of its divisors is an integer number (133722840).

Almost surely, 2^3261108816 is an apocalyptic number.

3261108816 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3261108816 is an abundant number, since it is smaller than the sum of its proper divisors (7436718384).

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

3261108816 is a wasteful number, since it uses less digits than its factorization.

3261108816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078433 (or 1078421 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 3261108816 is about 57106.1189015678. The cubic root of 3261108816 is about 1482.9337982263.

The spelling of 3261108816 in words is "three billion, two hundred sixty-one million, one hundred eight thousand, eight hundred sixteen".