71606548836 has 81 divisors (see below), whose sum is σ = 183202938009. Its totient is φ = 23582524032.

The previous prime is 71606548823. The next prime is 71606548841. The reversal of 71606548836 is 63884560617.

The square root of 71606548836 is 267594.

It is a perfect power (a square), and thus also a powerful number.

71606548836 is a `hidden beast` number, since 7 + 1 + 60 + 6 + 548 + 8 + 36 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8029952100 + 63576596736 = 89610^2 + 252144^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 165372876 + ... + 165373308.

Almost surely, 2^71606548836 is an apocalyptic number.

71606548836 is the 267594-th square number.

It is an amenable number.

71606548836 is an abundant number, since it is smaller than the sum of its proper divisors (111596389173).

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

71606548836 is a wasteful number, since it uses less digits than its factorization.

71606548836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 71606548836 in words is "seventy-one billion, six hundred six million, five hundred forty-eight thousand, eight hundred thirty-six".