71606115216 has 30 divisors (see below), whose sum is σ = 200397670070. Its totient is φ = 23868705024.

The previous prime is 71606115167. The next prime is 71606115227. The reversal of 71606115216 is 61251160617.

It is a happy number.

71606115216 is a `hidden beast` number, since 7 + 16 + 0 + 611 + 5 + 21 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 71180105616 + 426009600 = 266796^2 + 20640^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 248632201 + ... + 248632488.

Almost surely, 2^71606115216 is an apocalyptic number.

It is an amenable number.

71606115216 is an abundant number, since it is smaller than the sum of its proper divisors (128791554854).

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

71606115216 is a wasteful number, since it uses less digits than its factorization.

71606115216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497264703 (or 497264694 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The spelling of 71606115216 in words is "seventy-one billion, six hundred six million, one hundred fifteen thousand, two hundred sixteen".