40499715168 has 144 divisors (see below), whose sum is σ = 126344836800. Its totient is φ = 12203907840.

The previous prime is 40499715103. The next prime is 40499715169. The reversal of 40499715168 is 86151799404.

40499715168 is a `hidden beast` number, since 40 + 499 + 7 + 1 + 51 + 68 = 666.

40499715168 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40499715169) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 531363 + ... + 602781.

It is an arithmetic number, because the mean of its divisors is an integer number (877394700).

Almost surely, 2^40499715168 is an apocalyptic number.

40499715168 is a gapful number since it is divisible by the number (48) 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 40499715168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63172418400).

40499715168 is an abundant number, since it is smaller than the sum of its proper divisors (85845121632).

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

40499715168 is a wasteful number, since it uses less digits than its factorization.

40499715168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71625 (or 71614 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 40499715168 in words is "forty billion, four hundred ninety-nine million, seven hundred fifteen thousand, one hundred sixty-eight".