71529066 has 96 divisors (see below), whose sum is σ = 185427840. Its totient is φ = 19502208.

The previous prime is 71529001. The next prime is 71529077. The reversal of 71529066 is 66092517.

71529066 is a `hidden beast` number, since 71 + 529 + 0 + 66 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 71529066.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 312240 + ... + 312468.

It is an arithmetic number, because the mean of its divisors is an integer number (1931540).

Almost surely, 2^71529066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71529066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92713920).

71529066 is an abundant number, since it is smaller than the sum of its proper divisors (113898774).

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

71529066 is a wasteful number, since it uses less digits than its factorization.

71529066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348 (or 345 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 71529066 is about 8457.4857966183. The cubic root of 71529066 is about 415.1077593104.

The spelling of 71529066 in words is "seventy-one million, five hundred twenty-nine thousand, sixty-six".