542665445546 has 32 divisors (see below), whose sum is σ = 939507361920. Its totient is φ = 230267422656.

The previous prime is 542665445471. The next prime is 542665445591. The reversal of 542665445546 is 645544566245.

It is a junction number, because it is equal to n+sod(n) for n = 542665445491 and 542665445500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2578676 + ... + 2781168.

It is an arithmetic number, because the mean of its divisors is an integer number (29359605060).

Almost surely, 2^542665445546 is an apocalyptic number.

542665445546 is a deficient number, since it is larger than the sum of its proper divisors (396841916374).

542665445546 is a wasteful number, since it uses less digits than its factorization.

542665445546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204398.

The product of its digits is 69120000, while the sum is 56.

The spelling of 542665445546 in words is "five hundred forty-two billion, six hundred sixty-five million, four hundred forty-five thousand, five hundred forty-six".