71161378224 has 40 divisors (see below), whose sum is σ = 193509013440. Its totient is φ = 22472013888.

The previous prime is 71161378193. The next prime is 71161378279. The reversal of 71161378224 is 42287316117.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39013002 + ... + 39014825.

It is an arithmetic number, because the mean of its divisors is an integer number (4837725336).

Almost surely, 2^71161378224 is an apocalyptic number.

It is an amenable number.

71161378224 is an abundant number, since it is smaller than the sum of its proper divisors (122347635216).

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

71161378224 is a wasteful number, since it uses less digits than its factorization.

71161378224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78027857 (or 78027851 counting only the distinct ones).

The product of its digits is 112896, while the sum is 42.

The spelling of 71161378224 in words is "seventy-one billion, one hundred sixty-one million, three hundred seventy-eight thousand, two hundred twenty-four".