71155256792 has 8 divisors (see below), whose sum is σ = 133416106500. Its totient is φ = 35577628392.

The previous prime is 71155256771. The next prime is 71155256803. The reversal of 71155256792 is 29765255117.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 71155256792.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4447203542 + ... + 4447203557.

Almost surely, 2^71155256792 is an apocalyptic number.

It is an amenable number.

71155256792 is a deficient number, since it is larger than the sum of its proper divisors (62260849708).

71155256792 is a wasteful number, since it uses less digits than its factorization.

71155256792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8894407105 (or 8894407101 counting only the distinct ones).

The product of its digits is 1323000, while the sum is 50.

The spelling of 71155256792 in words is "seventy-one billion, one hundred fifty-five million, two hundred fifty-six thousand, seven hundred ninety-two".