8255120646 has 32 divisors (see below), whose sum is σ = 17803094400. Its totient is φ = 2543296320.

The previous prime is 8255120633. The next prime is 8255120663. The reversal of 8255120646 is 6460215528.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 878416 + ... + 887763.

It is an arithmetic number, because the mean of its divisors is an integer number (556346700).

Almost surely, 2^8255120646 is an apocalyptic number.

8255120646 is an abundant number, since it is smaller than the sum of its proper divisors (9547973754).

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

8255120646 is a wasteful number, since it uses less digits than its factorization.

8255120646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766244.

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 8255120646 is about 90857.6944787837. The cubic root of 8255120646 is about 2021.0379795958.

The spelling of 8255120646 in words is "eight billion, two hundred fifty-five million, one hundred twenty thousand, six hundred forty-six".