71166492 has 48 divisors (see below), whose sum is σ = 188002080. Its totient is φ = 23272704.

The previous prime is 71166481. The next prime is 71166499. The reversal of 71166492 is 29466117.

71166492 is a `hidden beast` number, since 7 + 1 + 1 + 6 + 649 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71166499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 493 + ... + 11940.

It is an arithmetic number, because the mean of its divisors is an integer number (3916710).

Almost surely, 2^71166492 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 71166492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94001040).

71166492 is an abundant number, since it is smaller than the sum of its proper divisors (116835588).

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

71166492 is a wasteful number, since it uses less digits than its factorization.

71166492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12499 (or 12491 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 71166492 is about 8436.0234708066. The cubic root of 71166492 is about 414.4051903640.

The spelling of 71166492 in words is "seventy-one million, one hundred sixty-six thousand, four hundred ninety-two".