71166030 has 64 divisors (see below), whose sum is σ = 184923648. Its totient is φ = 17424000.

The previous prime is 71166023. The next prime is 71166041. The reversal of 71166030 is 3066117.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97527 + ... + 98253.

It is an arithmetic number, because the mean of its divisors is an integer number (2889432).

Almost surely, 2^71166030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71166030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92461824).

71166030 is an abundant number, since it is smaller than the sum of its proper divisors (113757618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71166030 is a wasteful number, since it uses less digits than its factorization.

71166030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 71166030 is about 8435.9960881925. The cubic root of 71166030 is about 414.4042936142.

The spelling of 71166030 in words is "seventy-one million, one hundred sixty-six thousand, thirty".