71671672360 has 32 divisors (see below), whose sum is σ = 161365509000. Its totient is φ = 28650136320.

The previous prime is 71671672357. The next prime is 71671672403. The reversal of 71671672360 is 6327617617.

It can be written as a sum of positive squares in 4 ways, for example, as 49549869604 + 22121802756 = 222598^2 + 148734^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 71671672360.

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, 516411 + ... + 640330.

Almost surely, 2^71671672360 is an apocalyptic number.

It is an amenable number.

71671672360 is an abundant number, since it is smaller than the sum of its proper divisors (89693836640).

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

71671672360 is a wasteful number, since it uses less digits than its factorization.

71671672360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158301 (or 1158297 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 46.

The spelling of 71671672360 in words is "seventy-one billion, six hundred seventy-one million, six hundred seventy-two thousand, three hundred sixty".