3261332160 has 168 divisors, whose sum is σ = 11633368656. Its totient is φ = 869667840.

The previous prime is 3261332149. The next prime is 3261332183. The reversal of 3261332160 is 612331623.

It is a happy number.

3261332160 is a `hidden beast` number, since 3 + 2 + 613 + 32 + 16 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56790 + ... + 98730.

It is an arithmetic number, because the mean of its divisors is an integer number (69246242).

Almost surely, 2^3261332160 is an apocalyptic number.

3261332160 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3261332160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5816684328).

3261332160 is an abundant number, since it is smaller than the sum of its proper divisors (8372036496).

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

3261332160 is an equidigital number, since it uses as much as digits as its factorization.

3261332160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41973 (or 41951 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 3261332160 is about 57108.0743853266. The cubic root of 3261332160 is about 1482.9676514159.

Adding to 3261332160 its reverse (612331623), we get a palindrome (3873663783).

The spelling of 3261332160 in words is "three billion, two hundred sixty-one million, three hundred thirty-two thousand, one hundred sixty".