71427215966 has 8 divisors (see below), whose sum is σ = 107142627144. Its totient is φ = 35713006920.

The previous prime is 71427215917. The next prime is 71427215999. The reversal of 71427215966 is 66951272417.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133400 + ... + 400811.

It is an arithmetic number, because the mean of its divisors is an integer number (13392828393).

Almost surely, 2^71427215966 is an apocalyptic number.

71427215966 is a deficient number, since it is larger than the sum of its proper divisors (35715411178).

71427215966 is a wasteful number, since it uses less digits than its factorization.

71427215966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601066.

The product of its digits is 1270080, while the sum is 50.

The spelling of 71427215966 in words is "seventy-one billion, four hundred twenty-seven million, two hundred fifteen thousand, nine hundred sixty-six".