40616804640 has 192 divisors, whose sum is σ = 134981683200. Its totient is φ = 10237860864.

The previous prime is 40616804639. The next prime is 40616804647. The reversal of 40616804640 is 4640861604.

It is not an unprimeable number, because it can be changed into a prime (40616804647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4217751 + ... + 4227369.

It is an arithmetic number, because the mean of its divisors is an integer number (703029600).

Almost surely, 2^40616804640 is an apocalyptic number.

40616804640 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 40616804640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67490841600).

40616804640 is an abundant number, since it is smaller than the sum of its proper divisors (94364878560).

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

40616804640 is a wasteful number, since it uses less digits than its factorization.

40616804640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10119 (or 10111 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The spelling of 40616804640 in words is "forty billion, six hundred sixteen million, eight hundred four thousand, six hundred forty".