71646416562 has 96 divisors (see below), whose sum is σ = 168091130880. Its totient is φ = 19943007840.

The previous prime is 71646416557. The next prime is 71646416587. The reversal of 71646416562 is 26561464617.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38129139 + ... + 38131017.

It is an arithmetic number, because the mean of its divisors is an integer number (1750949280).

Almost surely, 2^71646416562 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71646416562, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84045565440).

71646416562 is an abundant number, since it is smaller than the sum of its proper divisors (96444714318).

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

71646416562 is a wasteful number, since it uses less digits than its factorization.

71646416562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2468 (or 2425 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 48.

The spelling of 71646416562 in words is "seventy-one billion, six hundred forty-six million, four hundred sixteen thousand, five hundred sixty-two".