2272371666 has 16 divisors (see below), whose sum is σ = 4621773600. Its totient is φ = 744618848.

The previous prime is 2272371631. The next prime is 2272371701. The reversal of 2272371666 is 6661732722.

2272371666 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2272371631) and next prime (2272371701).

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, 3209211 + ... + 3209918.

It is an arithmetic number, because the mean of its divisors is an integer number (288860850).

Almost surely, 2^2272371666 is an apocalyptic number.

2272371666 is an abundant number, since it is smaller than the sum of its proper divisors (2349401934).

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

2272371666 is a wasteful number, since it uses less digits than its factorization.

2272371666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6419193.

The product of its digits is 254016, while the sum is 42.

The square root of 2272371666 is about 47669.3996815567. The cubic root of 2272371666 is about 1314.6993710066.

The spelling of 2272371666 in words is "two billion, two hundred seventy-two million, three hundred seventy-one thousand, six hundred sixty-six".