54157666 has 8 divisors (see below), whose sum is σ = 82215504. Its totient is φ = 26752500.

The previous prime is 54157643. The next prime is 54157673. The reversal of 54157666 is 66675145.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162960 + ... + 163291.

It is an arithmetic number, because the mean of its divisors is an integer number (10276938).

Almost surely, 2^54157666 is an apocalyptic number.

54157666 is a deficient number, since it is larger than the sum of its proper divisors (28057838).

54157666 is a wasteful number, since it uses less digits than its factorization.

54157666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326336.

The product of its digits is 151200, while the sum is 40.

The square root of 54157666 is about 7359.1892216466. The cubic root of 54157666 is about 378.3438218072.

The spelling of 54157666 in words is "fifty-four million, one hundred fifty-seven thousand, six hundred sixty-six".