542545460666 has 16 divisors (see below), whose sum is σ = 902849150880. Its totient is φ = 242431715280.

The previous prime is 542545460629. The next prime is 542545460687. The reversal of 542545460666 is 666064545245.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208991561 + ... + 208994156.

It is an arithmetic number, because the mean of its divisors is an integer number (56428071930).

Almost surely, 2^542545460666 is an apocalyptic number.

542545460666 is a deficient number, since it is larger than the sum of its proper divisors (360303690214).

542545460666 is a wasteful number, since it uses less digits than its factorization.

542545460666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417985789.

The product of its (nonzero) digits is 20736000, while the sum is 53.

The spelling of 542545460666 in words is "five hundred forty-two billion, five hundred forty-five million, four hundred sixty thousand, six hundred sixty-six".