3205375656 has 128 divisors (see below), whose sum is σ = 9380966400. Its totient is φ = 893813760.

The previous prime is 3205375637. The next prime is 3205375661. The reversal of 3205375656 is 6565735023.

3205375656 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 (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1227280 + ... + 1229888.

It is an arithmetic number, because the mean of its divisors is an integer number (73288800).

Almost surely, 2^3205375656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3205375656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4690483200).

3205375656 is an abundant number, since it is smaller than the sum of its proper divisors (6175590744).

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

3205375656 is a wasteful number, since it uses less digits than its factorization.

3205375656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2799 (or 2795 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 42.

The square root of 3205375656 is about 56616.0370919760. The cubic root of 3205375656 is about 1474.4373080724.

The spelling of 3205375656 in words is "three billion, two hundred five million, three hundred seventy-five thousand, six hundred fifty-six".