71201661308 has 48 divisors (see below), whose sum is σ = 129037977600. Its totient is φ = 34356104640.

The previous prime is 71201661301. The next prime is 71201661347. The reversal of 71201661308 is 80316610217.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71201661301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12755078 + ... + 12760658.

It is an arithmetic number, because the mean of its divisors is an integer number (2688291200).

Almost surely, 2^71201661308 is an apocalyptic number.

It is an amenable number.

71201661308 is a deficient number, since it is larger than the sum of its proper divisors (57836316292).

71201661308 is a wasteful number, since it uses less digits than its factorization.

71201661308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6570 (or 6568 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The spelling of 71201661308 in words is "seventy-one billion, two hundred one million, six hundred sixty-one thousand, three hundred eight".