66110387 has 8 divisors (see below), whose sum is σ = 75936000. Its totient is φ = 56380104.

The previous prime is 66110377. The next prime is 66110411. The reversal of 66110387 is 78301166.

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

It is a cyclic number.

It is not a de Polignac number, because 66110387 - 2⁸ = 66110131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66110377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22337 + ... + 25122.

It is an arithmetic number, because the mean of its divisors is an integer number (9492000).

Almost surely, 2^66110387 is an apocalyptic number.

66110387 is a deficient number, since it is larger than the sum of its proper divisors (9825613).

66110387 is a wasteful number, since it uses less digits than its factorization.

66110387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47665.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 66110387 is about 8130.8294164864. The cubic root of 66110387 is about 404.3491797832.

The spelling of 66110387 in words is "sixty-six million, one hundred ten thousand, three hundred eighty-seven".