542918665 has 16 divisors (see below), whose sum is σ = 660441600. Its totient is φ = 428409792.

The previous prime is 542918639. The next prime is 542918683. The reversal of 542918665 is 566819245.

It is a cyclic number.

It is not a de Polignac number, because 542918665 - 2⁹ = 542918153 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136576 + ... + 140494.

It is an arithmetic number, because the mean of its divisors is an integer number (41277600).

Almost surely, 2^542918665 is an apocalyptic number.

It is an amenable number.

542918665 is a deficient number, since it is larger than the sum of its proper divisors (117522935).

542918665 is a wasteful number, since it uses less digits than its factorization.

542918665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4296.

The product of its digits is 518400, while the sum is 46.

The square root of 542918665 is about 23300.6151206358. The cubic root of 542918665 is about 815.7897747765.

The spelling of 542918665 in words is "five hundred forty-two million, nine hundred eighteen thousand, six hundred sixty-five".