54111666 has 32 divisors (see below), whose sum is σ = 123919488. Its totient is φ = 15431040.

The previous prime is 54111623. The next prime is 54111667. The reversal of 54111666 is 66611145.

It is not an unprimeable number, because it can be changed into a prime (54111667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31116 + ... + 32808.

It is an arithmetic number, because the mean of its divisors is an integer number (3872484).

Almost surely, 2^54111666 is an apocalyptic number.

54111666 is an abundant number, since it is smaller than the sum of its proper divisors (69807822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54111666 is a wasteful number, since it uses less digits than its factorization.

54111666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2466.

The product of its digits is 4320, while the sum is 30.

The square root of 54111666 is about 7356.0632134315. The cubic root of 54111666 is about 378.2366732608.

The spelling of 54111666 in words is "fifty-four million, one hundred eleven thousand, six hundred sixty-six".