71916156 has 72 divisors (see below), whose sum is σ = 202127744. Its totient is φ = 21409920.

The previous prime is 71916109. The next prime is 71916179. The reversal of 71916156 is 65161917.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 71916156.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12030 + ... + 16986.

Almost surely, 2^71916156 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 71916156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101063872).

71916156 is an abundant number, since it is smaller than the sum of its proper divisors (130211588).

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

71916156 is a wasteful number, since it uses less digits than its factorization.

71916156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5011 (or 5006 counting only the distinct ones).

The product of its digits is 11340, while the sum is 36.

The square root of 71916156 is about 8480.3393800013. The cubic root of 71916156 is about 415.8552180464.

The spelling of 71916156 in words is "seventy-one million, nine hundred sixteen thousand, one hundred fifty-six".