66059871 has 8 divisors (see below), whose sum is σ = 88117680. Its totient is φ = 44020992.

The previous prime is 66059869. The next prime is 66059921. The reversal of 66059871 is 17895066.

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

It is not a de Polignac number, because 66059871 - 2¹ = 66059869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66059831) 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, 9721 + ... + 15053.

It is an arithmetic number, because the mean of its divisors is an integer number (11014710).

Almost surely, 2^66059871 is an apocalyptic number.

66059871 is a deficient number, since it is larger than the sum of its proper divisors (22057809).

66059871 is a wasteful number, since it uses less digits than its factorization.

66059871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9465.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 66059871 is about 8127.7223746878. The cubic root of 66059871 is about 404.2461636565.

The spelling of 66059871 in words is "sixty-six million, fifty-nine thousand, eight hundred seventy-one".