542445160665 has 16 divisors (see below), whose sum is σ = 876505450176. Its totient is φ = 286439688000.

The previous prime is 542445160661. The next prime is 542445160711. The reversal of 542445160665 is 566061544245.

It is a happy number.

It is not a de Polignac number, because 542445160665 - 2² = 542445160661 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (542445160661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179023291 + ... + 179026320.

It is an arithmetic number, because the mean of its divisors is an integer number (54781590636).

Almost surely, 2^542445160665 is an apocalyptic number.

It is an amenable number.

542445160665 is a deficient number, since it is larger than the sum of its proper divisors (334060289511).

542445160665 is a wasteful number, since it uses less digits than its factorization.

542445160665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358049720.

The product of its (nonzero) digits is 3456000, while the sum is 48.

The spelling of 542445160665 in words is "five hundred forty-two billion, four hundred forty-five million, one hundred sixty thousand, six hundred sixty-five".