2247665646 has 16 divisors (see below), whose sum is σ = 4501390464. Its totient is φ = 748212024.

The previous prime is 2247665627. The next prime is 2247665669. The reversal of 2247665646 is 6465667422.

It is a junction number, because it is equal to n+sod(n) for n = 2247665595 and 2247665604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247636 + ... + 256551.

It is an arithmetic number, because the mean of its divisors is an integer number (281336904).

Almost surely, 2^2247665646 is an apocalyptic number.

2247665646 is an abundant number, since it is smaller than the sum of its proper divisors (2253724818).

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

2247665646 is a wasteful number, since it uses less digits than its factorization.

2247665646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504935.

The product of its digits is 2903040, while the sum is 48.

The square root of 2247665646 is about 47409.5522653399. The cubic root of 2247665646 is about 1309.9173745063.

The spelling of 2247665646 in words is "two billion, two hundred forty-seven million, six hundred sixty-five thousand, six hundred forty-six".