66430158 has 8 divisors (see below), whose sum is σ = 132860328. Its totient is φ = 22143384.

The previous prime is 66430121. The next prime is 66430163. The reversal of 66430158 is 85103466.

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

66430158 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

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, 5535841 + ... + 5535852.

It is an arithmetic number, because the mean of its divisors is an integer number (16607541).

Almost surely, 2^66430158 is an apocalyptic number.

66430158 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

66430158 is a wasteful number, since it uses less digits than its factorization.

66430158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11071698.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 66430158 is about 8150.4698024102. The cubic root of 66430158 is about 405.0000670629. Note that the first 4 decimals are identical.

Subtracting from 66430158 its sum of digits (33), we obtain a cube (66430125 = 405³).

The spelling of 66430158 in words is "sixty-six million, four hundred thirty thousand, one hundred fifty-eight".