545723305644 has 36 divisors (see below), whose sum is σ = 1399637462552. Its totient is φ = 165370698240.

The previous prime is 545723305637. The next prime is 545723305709. The reversal of 545723305644 is 446503327545.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 545723305593 and 545723305602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 187919797 + ... + 187922700.

Almost surely, 2^545723305644 is an apocalyptic number.

It is an amenable number.

545723305644 is an abundant number, since it is smaller than the sum of its proper divisors (853914156908).

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

545723305644 is a wasteful number, since it uses less digits than its factorization.

545723305644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375842526 (or 375842513 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 48.

The spelling of 545723305644 in words is "five hundred forty-five billion, seven hundred twenty-three million, three hundred five thousand, six hundred forty-four".