66167411 has 4 divisors (see below), whose sum is σ = 67706232. Its totient is φ = 64628592.

The previous prime is 66167369. The next prime is 66167429. The reversal of 66167411 is 11476166.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66167411 - 2¹⁸ = 65905267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66167441) 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, 769346 + ... + 769431.

It is an arithmetic number, because the mean of its divisors is an integer number (16926558).

Almost surely, 2^66167411 is an apocalyptic number.

66167411 is a deficient number, since it is larger than the sum of its proper divisors (1538821).

66167411 is a wasteful number, since it uses less digits than its factorization.

66167411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538820.

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

The square root of 66167411 is about 8134.3353139639. The cubic root of 66167411 is about 404.4654044913.

The spelling of 66167411 in words is "sixty-six million, one hundred sixty-seven thousand, four hundred eleven".