4069665632 has 216 divisors, whose sum is σ = 9550121616. Its totient is φ = 1702711296.

The previous prime is 4069665623. The next prime is 4069665653. The reversal of 4069665632 is 2365669604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 76786118 + ... + 76786170.

It is an arithmetic number, because the mean of its divisors is an integer number (44213526).

Almost surely, 2^4069665632 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 4069665632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4775060808).

4069665632 is an abundant number, since it is smaller than the sum of its proper divisors (5480455984).

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

4069665632 is a wasteful number, since it uses less digits than its factorization.

4069665632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 47.

The square root of 4069665632 is about 63793.9309966081. The cubic root of 4069665632 is about 1596.5636708933.

The spelling of 4069665632 in words is "four billion, sixty-nine million, six hundred sixty-five thousand, six hundred thirty-two".