54161666 has 16 divisors (see below), whose sum is σ = 92097600. Its totient is φ = 23681808.

The previous prime is 54161633. The next prime is 54161687. The reversal of 54161666 is 66616145.

It is an unprimeable number.

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, 54326 + ... + 55313.

It is an arithmetic number, because the mean of its divisors is an integer number (5756100).

Almost surely, 2^54161666 is an apocalyptic number.

54161666 is a deficient number, since it is larger than the sum of its proper divisors (37935934).

54161666 is a wasteful number, since it uses less digits than its factorization.

54161666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109673.

The product of its digits is 25920, while the sum is 35.

The square root of 54161666 is about 7359.4609856973. The cubic root of 54161666 is about 378.3531362044.

The spelling of 54161666 in words is "fifty-four million, one hundred sixty-one thousand, six hundred sixty-six".