71546664 has 96 divisors (see below), whose sum is σ = 210863520. Its totient is φ = 20168064.

The previous prime is 71546663. The next prime is 71546677. The reversal of 71546664 is 46664517.

It is not an unprimeable number, because it can be changed into a prime (71546663) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97242 + ... + 97974.

It is an arithmetic number, because the mean of its divisors is an integer number (2196495).

Almost surely, 2^71546664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71546664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105431760).

71546664 is an abundant number, since it is smaller than the sum of its proper divisors (139316856).

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

71546664 is a wasteful number, since it uses less digits than its factorization.

71546664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839 (or 828 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 71546664 is about 8458.5261127456. The cubic root of 71546664 is about 415.1417989336.

The spelling of 71546664 in words is "seventy-one million, five hundred forty-six thousand, six hundred sixty-four".