1630252266 has 16 divisors (see below), whose sum is σ = 3261544704. Its totient is φ = 543244064.

The previous prime is 1630252237. The next prime is 1630252277. The reversal of 1630252266 is 6622520361.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22170 + ... + 61253.

It is an arithmetic number, because the mean of its divisors is an integer number (203846544).

Almost surely, 2^1630252266 is an apocalyptic number.

1630252266 is an abundant number, since it is smaller than the sum of its proper divisors (1631292438).

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

1630252266 is a wasteful number, since it uses less digits than its factorization.

1630252266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86685.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 1630252266 is about 40376.3825274132. The cubic root of 1630252266 is about 1176.9326314001.

The spelling of 1630252266 in words is "one billion, six hundred thirty million, two hundred fifty-two thousand, two hundred sixty-six".