145344444564 has 24 divisors (see below), whose sum is σ = 369967677408. Its totient is φ = 44043771040.

The previous prime is 145344444551. The next prime is 145344444589. The reversal of 145344444564 is 465444443541.

It is a happy number.

It is a super-2 number, since 2×145344444564² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550547007 + ... + 550547270.

It is an arithmetic number, because the mean of its divisors is an integer number (15415319892).

Almost surely, 2^145344444564 is an apocalyptic number.

It is an amenable number.

145344444564 is an abundant number, since it is smaller than the sum of its proper divisors (224623232844).

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

145344444564 is a wasteful number, since it uses less digits than its factorization.

145344444564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101094295 (or 1101094293 counting only the distinct ones).

The product of its digits is 7372800, while the sum is 48.

The spelling of 145344444564 in words is "one hundred forty-five billion, three hundred forty-four million, four hundred forty-four thousand, five hundred sixty-four".