8255664101 has 4 divisors (see below), whose sum is σ = 8457021804. Its totient is φ = 8054306400.

The previous prime is 8255664071. The next prime is 8255664133. The reversal of 8255664101 is 1014665528.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2820141025 + 5435523076 = 53105^2 + 73726^2 .

It is a cyclic number.

It is not a de Polignac number, because 8255664101 - 2⁶ = 8255664037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8255669101) 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, 100678790 + ... + 100678871.

It is an arithmetic number, because the mean of its divisors is an integer number (2114255451).

Almost surely, 2^8255664101 is an apocalyptic number.

It is an amenable number.

8255664101 is a deficient number, since it is larger than the sum of its proper divisors (201357703).

8255664101 is a wasteful number, since it uses less digits than its factorization.

8255664101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201357702.

The product of its (nonzero) digits is 57600, while the sum is 38.

The square root of 8255664101 is about 90860.6851228847. The cubic root of 8255664101 is about 2021.0823285981.

The spelling of 8255664101 in words is "eight billion, two hundred fifty-five million, six hundred sixty-four thousand, one hundred one".