545640003543 has 4 divisors (see below), whose sum is σ = 727520004728. Its totient is φ = 363760002360.

The previous prime is 545640003541. The next prime is 545640003563. The reversal of 545640003543 is 345300046545.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 545640003543 - 2¹ = 545640003541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545640003541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90940000588 + ... + 90940000593.

It is an arithmetic number, because the mean of its divisors is an integer number (181880001182).

Almost surely, 2^545640003543 is an apocalyptic number.

545640003543 is a deficient number, since it is larger than the sum of its proper divisors (181880001185).

545640003543 is a wasteful number, since it uses less digits than its factorization.

545640003543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181880001184.

The product of its (nonzero) digits is 432000, while the sum is 39.

The spelling of 545640003543 in words is "five hundred forty-five billion, six hundred forty million, three thousand, five hundred forty-three".