71161675052272 has 80 divisors (see below), whose sum is σ = 162744495685632. Its totient is φ = 29497866324480.

The previous prime is 71161675052263. The next prime is 71161675052309. The reversal of 71161675052272 is 27225057616117.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 707988 + ... + 11950924.

Almost surely, 2^{71161675052272} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71161675052272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81372247842816).

71161675052272 is an abundant number, since it is smaller than the sum of its proper divisors (91582820633360).

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

71161675052272 is a wasteful number, since it uses less digits than its factorization.

71161675052272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11244806 (or 11244800 counting only the distinct ones).

The product of its (nonzero) digits is 2469600, while the sum is 52.

The spelling of 71161675052272 in words is "seventy-one trillion, one hundred sixty-one billion, six hundred seventy-five million, fifty-two thousand, two hundred seventy-two".