40133320320 has 128 divisors (see below), whose sum is σ = 129121179840. Its totient is φ = 10602143744.

The previous prime is 40133320289. The next prime is 40133320349. The reversal of 40133320320 is 2302333104.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×40133320320² (a number of 22 digits) contains 22 as substring.

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, 107764 + ... + 303116.

Almost surely, 2^40133320320 is an apocalyptic number.

40133320320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40133320320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64560589920).

40133320320 is an abundant number, since it is smaller than the sum of its proper divisors (88987859520).

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

40133320320 is a wasteful number, since it uses less digits than its factorization.

40133320320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195482 (or 195470 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 40133320320 its reverse (2302333104), we get a palindrome (42435653424).

The spelling of 40133320320 in words is "forty billion, one hundred thirty-three million, three hundred twenty thousand, three hundred twenty".