145823544744866 has 24 divisors (see below), whose sum is σ = 229202170412124. Its totient is φ = 69576037866720.

The previous prime is 145823544744841. The next prime is 145823544744877. The reversal of 145823544744866 is 668447445328541.

It can be written as a sum of positive squares in 2 ways, for example, as 130077925539241 + 15745619205625 = 11405171^2 + 3968075^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 145823544744866.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 163247501 + ... + 164138336.

Almost surely, 2^{145823544744866} is an apocalyptic number.

145823544744866 is a deficient number, since it is larger than the sum of its proper divisors (83378625667258).

145823544744866 is a wasteful number, since it uses less digits than its factorization.

145823544744866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327386306 (or 327386283 counting only the distinct ones).

The product of its digits is 2477260800, while the sum is 71.

The spelling of 145823544744866 in words is "one hundred forty-five trillion, eight hundred twenty-three billion, five hundred forty-four million, seven hundred forty-four thousand, eight hundred sixty-six".