1445640553306 has 8 divisors (see below), whose sum is σ = 2169697835124. Its totient is φ = 722407941600.

The previous prime is 1445640553289. The next prime is 1445640553307. The reversal of 1445640553306 is 6033550465441.

It can be written as a sum of positive squares in 2 ways, for example, as 1328682709225 + 116957844081 = 1152685^2 + 341991^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1445640553307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206163145 + ... + 206170156.

Almost surely, 2^{1445640553306} is an apocalyptic number.

1445640553306 is a deficient number, since it is larger than the sum of its proper divisors (724057281818).

1445640553306 is a wasteful number, since it uses less digits than its factorization.

1445640553306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412335056.

The product of its (nonzero) digits is 2592000, while the sum is 46.

The spelling of 1445640553306 in words is "one trillion, four hundred forty-five billion, six hundred forty million, five hundred fifty-three thousand, three hundred six".