40165032306 has 128 divisors (see below), whose sum is σ = 97285870080. Its totient is φ = 10813243392.

The previous prime is 40165032289. The next prime is 40165032307. The reversal of 40165032306 is 60323056104.

It is a super-2 number, since 2×40165032306² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40165032307) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8622330 + ... + 8626986.

It is an arithmetic number, because the mean of its divisors is an integer number (760045860).

Almost surely, 2^40165032306 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40165032306, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48642935040).

40165032306 is an abundant number, since it is smaller than the sum of its proper divisors (57120837774).

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

40165032306 is a wasteful number, since it uses less digits than its factorization.

40165032306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4868.

The product of its (nonzero) digits is 12960, while the sum is 30.

The spelling of 40165032306 in words is "forty billion, one hundred sixty-five million, thirty-two thousand, three hundred six".