545561726612 has 72 divisors (see below), whose sum is σ = 1121840848800. Its totient is φ = 231457093056.

The previous prime is 545561726603. The next prime is 545561726669. The reversal of 545561726612 is 216627165545.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9424814 + ... + 9482522.

It is an arithmetic number, because the mean of its divisors is an integer number (15581122900).

Almost surely, 2^545561726612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545561726612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (560920424400).

545561726612 is an abundant number, since it is smaller than the sum of its proper divisors (576279122188).

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

545561726612 is a wasteful number, since it uses less digits than its factorization.

545561726612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58213 (or 58204 counting only the distinct ones).

The product of its digits is 3024000, while the sum is 50.

The spelling of 545561726612 in words is "five hundred forty-five billion, five hundred sixty-one million, seven hundred twenty-six thousand, six hundred twelve".