1445345050221 has 6 divisors (see below), whose sum is σ = 2087720628110. Its totient is φ = 963563366808.

The previous prime is 1445345050217. The next prime is 1445345050229. The reversal of 1445345050221 is 1220505435441.

1445345050221 is a `hidden beast` number, since 1 + 4 + 4 + 534 + 50 + 50 + 2 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1223258120100 + 222086930121 = 1106010^2 + 471261^2 .

It is not a de Polignac number, because 1445345050221 - 2² = 1445345050217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445345050229) 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, 80296947226 + ... + 80296947243.

Almost surely, 2^{1445345050221} is an apocalyptic number.

It is an amenable number.

1445345050221 is a deficient number, since it is larger than the sum of its proper divisors (642375577889).

1445345050221 is a wasteful number, since it uses less digits than its factorization.

1445345050221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160593894475 (or 160593894472 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The spelling of 1445345050221 in words is "one trillion, four hundred forty-five billion, three hundred forty-five million, fifty thousand, two hundred twenty-one".