4371661168 has 80 divisors (see below), whose sum is σ = 10162206720. Its totient is φ = 1782316800.

The previous prime is 4371661139. The next prime is 4371661187. The reversal of 4371661168 is 8611661734.

It is a super-2 number, since 2×4371661168² = 38222842735598248448, which contains 22 as substring.

It is a congruent number.

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, 194178 + ... + 215518.

It is an arithmetic number, because the mean of its divisors is an integer number (127027584).

Almost surely, 2^4371661168 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 4371661168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5081103360).

4371661168 is an abundant number, since it is smaller than the sum of its proper divisors (5790545552).

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

4371661168 is a wasteful number, since it uses less digits than its factorization.

4371661168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21446 (or 21440 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 4371661168 is about 66118.5387618329. The cubic root of 4371661168 is about 1635.1169905096.

The spelling of 4371661168 in words is "four billion, three hundred seventy-one million, six hundred sixty-one thousand, one hundred sixty-eight".