66345158 has 8 divisors (see below), whose sum is σ = 108564840. Its totient is φ = 30156880.

The previous prime is 66345151. The next prime is 66345161. The reversal of 66345158 is 85154366.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66345151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1507823 + ... + 1507866.

It is an arithmetic number, because the mean of its divisors is an integer number (13570605).

Almost surely, 2^66345158 is an apocalyptic number.

66345158 is a deficient number, since it is larger than the sum of its proper divisors (42219682).

66345158 is a wasteful number, since it uses less digits than its factorization.

66345158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3015702.

The product of its digits is 86400, while the sum is 38.

The square root of 66345158 is about 8145.2537099835. The cubic root of 66345158 is about 404.8272554971.

The spelling of 66345158 in words is "sixty-six million, three hundred forty-five thousand, one hundred fifty-eight".