545729339520 has 128 divisors (see below), whose sum is σ = 1932791472000. Its totient is φ = 145527819264.

The previous prime is 545729339513. The next prime is 545729339539. The reversal of 545729339520 is 25933927545.

545729339520 is a `hidden beast` number, since 5 + 45 + 72 + 9 + 3 + 3 + 9 + 520 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15773500 + ... + 15808059.

It is an arithmetic number, because the mean of its divisors is an integer number (15099933375).

Almost surely, 2^545729339520 is an apocalyptic number.

It is an amenable number.

545729339520 is an abundant number, since it is smaller than the sum of its proper divisors (1387062132480).

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

545729339520 is a wasteful number, since it uses less digits than its factorization.

545729339520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31581587 (or 31581569 counting only the distinct ones).

The product of its (nonzero) digits is 10206000, while the sum is 54.

The spelling of 545729339520 in words is "five hundred forty-five billion, seven hundred twenty-nine million, three hundred thirty-nine thousand, five hundred twenty".