71550771232 has 96 divisors (see below), whose sum is σ = 153098092224. Its totient is φ = 32784998400.

The previous prime is 71550771221. The next prime is 71550771263. The reversal of 71550771232 is 23217705517.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7738132 + ... + 7747372.

It is an arithmetic number, because the mean of its divisors is an integer number (1594771794).

Almost surely, 2^71550771232 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 71550771232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76549046112).

71550771232 is an abundant number, since it is smaller than the sum of its proper divisors (81547320992).

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

71550771232 is a wasteful number, since it uses less digits than its factorization.

71550771232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9642 (or 9634 counting only the distinct ones).

The product of its (nonzero) digits is 102900, while the sum is 40.

The spelling of 71550771232 in words is "seventy-one billion, five hundred fifty million, seven hundred seventy-one thousand, two hundred thirty-two".