71660151744 has 28 divisors (see below), whose sum is σ = 189600818664. Its totient is φ = 23886717184.

The previous prime is 71660151743. The next prime is 71660151749. The reversal of 71660151744 is 44715106617.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 71660151696 and 71660151705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71660151743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186614787 + ... + 186615170.

Almost surely, 2^71660151744 is an apocalyptic number.

It is an amenable number.

71660151744 is an abundant number, since it is smaller than the sum of its proper divisors (117940666920).

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

71660151744 is a wasteful number, since it uses less digits than its factorization.

71660151744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373229972 (or 373229962 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The spelling of 71660151744 in words is "seventy-one billion, six hundred sixty million, one hundred fifty-one thousand, seven hundred forty-four".