1446641666 has 16 divisors (see below), whose sum is σ = 2194819200. Its totient is φ = 715079568.

The previous prime is 1446641659. The next prime is 1446641681. The reversal of 1446641666 is 6661466441.

It is a happy number.

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, 55556 + ... + 77328.

It is an arithmetic number, because the mean of its divisors is an integer number (137176200).

Almost surely, 2^1446641666 is an apocalyptic number.

1446641666 is a deficient number, since it is larger than the sum of its proper divisors (748177534).

1446641666 is a wasteful number, since it uses less digits than its factorization.

1446641666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22153.

The product of its digits is 497664, while the sum is 44.

The square root of 1446641666 is about 38034.7428806874. The cubic root of 1446641666 is about 1130.9766964850.

The spelling of 1446641666 in words is "one billion, four hundred forty-six million, six hundred forty-one thousand, six hundred sixty-six".