6656152225 has 12 divisors (see below), whose sum is σ = 8285752044. Its totient is φ = 5304197120.

The previous prime is 6656152213. The next prime is 6656152247. The reversal of 6656152225 is 5222516566.

It can be written as a sum of positive squares in 6 ways, for example, as 1649740689 + 5006411536 = 40617^2 + 70756^2 .

It is not a de Polignac number, because 6656152225 - 2¹⁷ = 6656021153 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 511564 + ... + 524413.

It is an arithmetic number, because the mean of its divisors is an integer number (690479337).

Almost surely, 2^6656152225 is an apocalyptic number.

It is an amenable number.

6656152225 is a deficient number, since it is larger than the sum of its proper divisors (1629599819).

6656152225 is a wasteful number, since it uses less digits than its factorization.

6656152225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036244 (or 1036239 counting only the distinct ones).

The product of its digits is 216000, while the sum is 40.

The square root of 6656152225 is about 81585.2451427340. The cubic root of 6656152225 is about 1881.0820902886.

The spelling of 6656152225 in words is "six billion, six hundred fifty-six million, one hundred fifty-two thousand, two hundred twenty-five".