66093871 has 8 divisors (see below), whose sum is σ = 68468400. Its totient is φ = 63725760.

The previous prime is 66093847. The next prime is 66093883. The reversal of 66093871 is 17839066.

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

It is not a de Polignac number, because 66093871 - 2¹⁹ = 65569583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66093371) 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, 30595 + ... + 32683.

It is an arithmetic number, because the mean of its divisors is an integer number (8558550).

Almost surely, 2^66093871 is an apocalyptic number.

66093871 is a deficient number, since it is larger than the sum of its proper divisors (2374529).

66093871 is a wasteful number, since it uses less digits than its factorization.

66093871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3209.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 66093871 is about 8129.8137125029. The cubic root of 66093871 is about 404.3155048567.

The spelling of 66093871 in words is "sixty-six million, ninety-three thousand, eight hundred seventy-one".