542215664543 has 6 divisors (see below), whose sum is σ = 630740671056. Its totient is φ = 464756283852.

The previous prime is 542215664533. The next prime is 542215664603. The reversal of 542215664543 is 345466512245.

It is not a de Polignac number, because 542215664543 - 2¹⁶ = 542215599007 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 (542215664533) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5532812855 + ... + 5532812952.

It is an arithmetic number, because the mean of its divisors is an integer number (105123445176).

Almost surely, 2^542215664543 is an apocalyptic number.

542215664543 is a deficient number, since it is larger than the sum of its proper divisors (88525006513).

542215664543 is a wasteful number, since it uses less digits than its factorization.

542215664543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11065625821 (or 11065625814 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 47.

The spelling of 542215664543 in words is "five hundred forty-two billion, two hundred fifteen million, six hundred sixty-four thousand, five hundred forty-three".