71606900844 has 36 divisors (see below), whose sum is σ = 182608169016. Its totient is φ = 23657735808.

The previous prime is 71606900839. The next prime is 71606900867. The reversal of 71606900844 is 44800960617.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 71606900844.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8797174 + ... + 8805309.

Almost surely, 2^71606900844 is an apocalyptic number.

It is an amenable number.

71606900844 is an abundant number, since it is smaller than the sum of its proper divisors (111001268172).

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

71606900844 is a wasteful number, since it uses less digits than its factorization.

71606900844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17602606 (or 17602601 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 71606900844 in words is "seventy-one billion, six hundred six million, nine hundred thousand, eight hundred forty-four".