1445354666 has 16 divisors (see below), whose sum is σ = 2528318400. Its totient is φ = 619437420.

The previous prime is 1445354641. The next prime is 1445354723. The reversal of 1445354666 is 6664535441.

It is a super-2 number, since 2×1445354666² = 4178100221055943112, which contains 22 as substring.

It is a Curzon 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, 1052780 + ... + 1054151.

It is an arithmetic number, because the mean of its divisors is an integer number (158019900).

Almost surely, 2^1445354666 is an apocalyptic number.

1445354666 is a deficient number, since it is larger than the sum of its proper divisors (1082963734).

1445354666 is an equidigital number, since it uses as much as digits as its factorization.

1445354666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2106954 (or 2106940 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 44.

The square root of 1445354666 is about 38017.8203741351. The cubic root of 1445354666 is about 1130.6412070770.

The spelling of 1445354666 in words is "one billion, four hundred forty-five million, three hundred fifty-four thousand, six hundred sixty-six".