1445796666 has 12 divisors (see below), whose sum is σ = 3132559482. Its totient is φ = 481932216.

The previous prime is 1445796661. The next prime is 1445796701. The reversal of 1445796666 is 6666975441.

It can be written as a sum of positive squares in only one way, i.e., 1224650025 + 221146641 = 34995^2 + 14871^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1445796661) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40161001 + ... + 40161036.

Almost surely, 2^1445796666 is an apocalyptic number.

1445796666 is an abundant number, since it is smaller than the sum of its proper divisors (1686762816).

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

1445796666 is a wasteful number, since it uses less digits than its factorization.

1445796666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80322045 (or 80322042 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The square root of 1445796666 is about 38023.6329931794. The cubic root of 1445796666 is about 1130.7564481068.

The spelling of 1445796666 in words is "one billion, four hundred forty-five million, seven hundred ninety-six thousand, six hundred sixty-six".