40118317721208 has 256 divisors, whose sum is σ = 119001166848000. Its totient is φ = 12479217702912.

The previous prime is 40118317721203. The next prime is 40118317721267. The reversal of 40118317721208 is 80212771381104.

It is a happy number.

40118317721208 is a `hidden beast` number, since 4 + 0 + 118 + 317 + 7 + 212 + 0 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40118317721203) 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, 233052913 + ... + 233224991.

It is an arithmetic number, because the mean of its divisors is an integer number (464848308000).

Almost surely, 2^{40118317721208} 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 40118317721208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59500583424000).

40118317721208 is an abundant number, since it is smaller than the sum of its proper divisors (78882849126792).

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

40118317721208 is a wasteful number, since it uses less digits than its factorization.

40118317721208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172651 (or 172641 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 45.

The spelling of 40118317721208 in words is "forty trillion, one hundred eighteen billion, three hundred seventeen million, seven hundred twenty-one thousand, two hundred eight".