71658970156 has 12 divisors (see below), whose sum is σ = 127274887768. Its totient is φ = 35294716512.

The previous prime is 71658970139. The next prime is 71658970183. The reversal of 71658970156 is 65107985617.

It is a happy number.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 71658970097 and 71658970106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133691841 + ... + 133692376.

Almost surely, 2^71658970156 is an apocalyptic number.

It is an amenable number.

71658970156 is a deficient number, since it is larger than the sum of its proper divisors (55615917612).

71658970156 is a wasteful number, since it uses less digits than its factorization.

71658970156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267384288 (or 267384286 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 55.

The spelling of 71658970156 in words is "seventy-one billion, six hundred fifty-eight million, nine hundred seventy thousand, one hundred fifty-six".