540361666 has 16 divisors (see below), whose sum is σ = 879177600. Its totient is φ = 247601808.

The previous prime is 540361637. The next prime is 540361667. The reversal of 540361666 is 666163045.

It is not an unprimeable number, because it can be changed into a prime (540361667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71146 + ... + 78373.

It is an arithmetic number, because the mean of its divisors is an integer number (54948600).

Almost surely, 2^540361666 is an apocalyptic number.

540361666 is a deficient number, since it is larger than the sum of its proper divisors (338815934).

540361666 is a wasteful number, since it uses less digits than its factorization.

540361666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149673.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 540361666 is about 23245.6805880146. The cubic root of 540361666 is about 814.5070430295.

The spelling of 540361666 in words is "five hundred forty million, three hundred sixty-one thousand, six hundred sixty-six".