1445166646 has 48 divisors (see below), whose sum is σ = 2796843168. Its totient is φ = 547810560.

The previous prime is 1445166629. The next prime is 1445166673. The reversal of 1445166646 is 6466615441.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51150 + ... + 74206.

It is an arithmetic number, because the mean of its divisors is an integer number (58267566).

Almost surely, 2^1445166646 is an apocalyptic number.

1445166646 is a deficient number, since it is larger than the sum of its proper divisors (1351676522).

1445166646 is a wasteful number, since it uses less digits than its factorization.

1445166646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23125 (or 23114 counting only the distinct ones).

The product of its digits is 414720, while the sum is 43.

The square root of 1445166646 is about 38015.3475059745. The cubic root of 1445166646 is about 1130.5921781930.

The spelling of 1445166646 in words is "one billion, four hundred forty-five million, one hundred sixty-six thousand, six hundred forty-six".