66141506 has 8 divisors (see below), whose sum is σ = 99571260. Its totient is φ = 32951088.

The previous prime is 66141497. The next prime is 66141511. The reversal of 66141506 is 60514166.

It can be written as a sum of positive squares in 2 ways, for example, as 63282025 + 2859481 = 7955^2 + 1691^2 .

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

It is a Curzon 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, 59141 + ... + 60248.

Almost surely, 2^66141506 is an apocalyptic number.

66141506 is a deficient number, since it is larger than the sum of its proper divisors (33429754).

66141506 is a wasteful number, since it uses less digits than its factorization.

66141506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119668.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 66141506 is about 8132.7428337554. The cubic root of 66141506 is about 404.4126139317.

The spelling of 66141506 in words is "sixty-six million, one hundred forty-one thousand, five hundred six".