71166073 has 8 divisors (see below), whose sum is σ = 77766336. Its totient is φ = 64587600.

The previous prime is 71166041. The next prime is 71166079. The reversal of 71166073 is 37066117.

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

It is not a de Polignac number, because 71166073 - 2⁵ = 71166041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71166079) 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, 1815 + ... + 12067.

It is an arithmetic number, because the mean of its divisors is an integer number (9720792).

Almost surely, 2^71166073 is an apocalyptic number.

It is an amenable number.

71166073 is a deficient number, since it is larger than the sum of its proper divisors (6600263).

71166073 is a wasteful number, since it uses less digits than its factorization.

71166073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10895.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 71166073 is about 8435.9986367946. The cubic root of 71166073 is about 414.4043770781.

The spelling of 71166073 in words is "seventy-one million, one hundred sixty-six thousand, seventy-three".