3215995560 has 96 divisors (see below), whose sum is σ = 10492035840. Its totient is φ = 854312832.

The previous prime is 3215995507. The next prime is 3215995561. The reversal of 3215995560 is 655995123.

3215995560 is a `hidden beast` number, since 3 + 2 + 1 + 5 + 99 + 556 + 0 = 666.

3215995560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (3215995561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77697 + ... + 111663.

It is an arithmetic number, because the mean of its divisors is an integer number (109292040).

Almost surely, 2^3215995560 is an apocalyptic number.

3215995560 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 3215995560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5246017920).

3215995560 is an abundant number, since it is smaller than the sum of its proper divisors (7276040280).

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

3215995560 is a wasteful number, since it uses less digits than its factorization.

3215995560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34247 (or 34240 counting only the distinct ones).

The product of its (nonzero) digits is 364500, while the sum is 45.

The square root of 3215995560 is about 56709.7483683361. The cubic root of 3215995560 is about 1476.0638591359.

The spelling of 3215995560 in words is "three billion, two hundred fifteen million, nine hundred ninety-five thousand, five hundred sixty".