445216585612544 has 18 divisors (see below), whose sum is σ = 888694043938050. Its totient is φ = 222608292806144.

The previous prime is 445216585612543. The next prime is 445216585612573.

It is a happy number.

445216585612544 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 444944685938944 + 271899673600 = 21093712^2 + 521440^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445216585612543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 869563643519 + ... + 869563644030.

Almost surely, 2^{445216585612544} is an apocalyptic number.

It is an amenable number.

445216585612544 is a deficient number, since it is larger than the sum of its proper divisors (443477458325506).

445216585612544 is an equidigital number, since it uses as much as digits as its factorization.

445216585612544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1739127287565 (or 1739127287551 counting only the distinct ones).

The product of its digits is 184320000, while the sum is 62.

The spelling of 445216585612544 in words is "four hundred forty-five trillion, two hundred sixteen billion, five hundred eighty-five million, six hundred twelve thousand, five hundred forty-four".