71224370144 has 24 divisors (see below), whose sum is σ = 148471390368. Its totient is φ = 33517350400.

The previous prime is 71224370141. The next prime is 71224370171. The reversal of 71224370144 is 44107342217.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71224370141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65463032 + ... + 65464119.

It is an arithmetic number, because the mean of its divisors is an integer number (6186307932).

Almost surely, 2^71224370144 is an apocalyptic number.

It is an amenable number.

71224370144 is an abundant number, since it is smaller than the sum of its proper divisors (77247020224).

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

71224370144 is a wasteful number, since it uses less digits than its factorization.

71224370144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130927178 (or 130927170 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 35.

The spelling of 71224370144 in words is "seventy-one billion, two hundred twenty-four million, three hundred seventy thousand, one hundred forty-four".