71270216644 has 24 divisors (see below), whose sum is σ = 136073087136. Its totient is φ = 32392752000.

The previous prime is 71270216623. The next prime is 71270216681. The reversal of 71270216644 is 44661207217.

It is a junction number, because it is equal to n+sod(n) for n = 71270216597 and 71270216606.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 496059 + ... + 623389.

It is an arithmetic number, because the mean of its divisors is an integer number (5669711964).

Almost surely, 2^71270216644 is an apocalyptic number.

It is an amenable number.

71270216644 is a deficient number, since it is larger than the sum of its proper divisors (64802870492).

71270216644 is a wasteful number, since it uses less digits than its factorization.

71270216644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140067 (or 140065 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 71270216644 in words is "seventy-one billion, two hundred seventy million, two hundred sixteen thousand, six hundred forty-four".