3266520820 has 12 divisors (see below), whose sum is σ = 6859693764. Its totient is φ = 1306608320.

The previous prime is 3266520797. The next prime is 3266520823. The reversal of 3266520820 is 280256623.

3266520820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 472975504 + 2793545316 = 21748^2 + 52854^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3266520823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81663001 + ... + 81663040.

It is an arithmetic number, because the mean of its divisors is an integer number (571641147).

Almost surely, 2^3266520820 is an apocalyptic number.

It is an amenable number.

3266520820 is an abundant number, since it is smaller than the sum of its proper divisors (3593172944).

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

3266520820 is a wasteful number, since it uses less digits than its factorization.

3266520820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163326050 (or 163326048 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 3266520820 is about 57153.4847581493. The cubic root of 3266520820 is about 1483.7536837838.

The spelling of 3266520820 in words is "three billion, two hundred sixty-six million, five hundred twenty thousand, eight hundred twenty".