145563636224 has 20 divisors (see below), whose sum is σ = 290842969494. Its totient is φ = 72781817856.

The previous prime is 145563636193. The next prime is 145563636271. The reversal of 145563636224 is 422636365541.

It can be written as a sum of positive squares in only one way, i.e., 136332269824 + 9231366400 = 369232^2 + 96080^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142151477 + ... + 142152500.

Almost surely, 2^145563636224 is an apocalyptic number.

It is an amenable number.

145563636224 is a deficient number, since it is larger than the sum of its proper divisors (145279333270).

145563636224 is an frugal number, since it uses more digits than its factorization.

145563636224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284303995 (or 284303979 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 47.

The spelling of 145563636224 in words is "one hundred forty-five billion, five hundred sixty-three million, six hundred thirty-six thousand, two hundred twenty-four".