1445670650272 has 144 divisors (see below), whose sum is σ = 3166752221640. Its totient is φ = 647340097536.

The previous prime is 1445670650261. The next prime is 1445670650311. The reversal of 1445670650272 is 2720560765441.

It can be written as a sum of positive squares in 4 ways, for example, as 885262701456 + 560407948816 = 940884^2 + 748604^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55527754 + ... + 55553782.

Almost surely, 2^{1445670650272} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1445670650272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1583376110820).

1445670650272 is an abundant number, since it is smaller than the sum of its proper divisors (1721081571368).

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

1445670650272 is a wasteful number, since it uses less digits than its factorization.

1445670650272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26295 (or 26264 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 49.

The spelling of 1445670650272 in words is "one trillion, four hundred forty-five billion, six hundred seventy million, six hundred fifty thousand, two hundred seventy-two".