66023168 has 18 divisors (see below), whose sum is σ = 131788944. Its totient is φ = 33011456.

The previous prime is 66023143. The next prime is 66023197. The reversal of 66023168 is 86132066.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128696 + ... + 129207.

It is an arithmetic number, because the mean of its divisors is an integer number (7321608).

Almost surely, 2^66023168 is an apocalyptic number.

It is an amenable number.

66023168 is a deficient number, since it is larger than the sum of its proper divisors (65765776).

66023168 is an equidigital number, since it uses as much as digits as its factorization.

66023168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257919 (or 257905 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 66023168 is about 8125.4641713566. The cubic root of 66023168 is about 404.1712831206.

The spelling of 66023168 in words is "sixty-six million, twenty-three thousand, one hundred sixty-eight".