542665463543 has 16 divisors (see below), whose sum is σ = 622246717440. Its totient is φ = 463601112000.

The previous prime is 542665463521. The next prime is 542665463563. The reversal of 542665463543 is 345364566245.

It is a cyclic number.

It is not a de Polignac number, because 542665463543 - 2¹⁰ = 542665462519 is a prime.

It is a super-2 number, since 2×542665463543² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542665463503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2518718 + ... + 2725668.

It is an arithmetic number, because the mean of its divisors is an integer number (38890419840).

Almost surely, 2^542665463543 is an apocalyptic number.

542665463543 is a deficient number, since it is larger than the sum of its proper divisors (79581253897).

542665463543 is a wasteful number, since it uses less digits than its factorization.

542665463543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208198.

The product of its digits is 31104000, while the sum is 53.

The spelling of 542665463543 in words is "five hundred forty-two billion, six hundred sixty-five million, four hundred sixty-three thousand, five hundred forty-three".