71441643560 has 32 divisors (see below), whose sum is σ = 183707084160. Its totient is φ = 24494277696.

The previous prime is 71441643541. The next prime is 71441643577. The reversal of 71441643560 is 6534614417.

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, 127574084 + ... + 127574643.

It is an arithmetic number, because the mean of its divisors is an integer number (5740846380).

Almost surely, 2^71441643560 is an apocalyptic number.

71441643560 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

71441643560 is an abundant number, since it is smaller than the sum of its proper divisors (112265440600).

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

71441643560 is a wasteful number, since it uses less digits than its factorization.

71441643560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255148745 (or 255148741 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 71441643560 in words is "seventy-one billion, four hundred forty-one million, six hundred forty-three thousand, five hundred sixty".