545918645920 has 24 divisors (see below), whose sum is σ = 1289732801364. Its totient is φ = 218367458304.

The previous prime is 545918645849. The next prime is 545918645977. The reversal of 545918645920 is 29546819545.

It can be written as a sum of positive squares in 2 ways, for example, as 523880649616 + 22037996304 = 723796^2 + 148452^2 .

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1705995609 + ... + 1705995928.

Almost surely, 2^545918645920 is an apocalyptic number.

It is an amenable number.

545918645920 is an abundant number, since it is smaller than the sum of its proper divisors (743814155444).

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

545918645920 is a wasteful number, since it uses less digits than its factorization.

545918645920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3411991552 (or 3411991544 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 58.

The spelling of 545918645920 in words is "five hundred forty-five billion, nine hundred eighteen million, six hundred forty-five thousand, nine hundred twenty".