40099328766 has 48 divisors (see below), whose sum is σ = 99412185600. Its totient is φ = 11443265424.

The previous prime is 40099328761. The next prime is 40099328779. The reversal of 40099328766 is 66782399004.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40099328761) 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, 83946 + ... + 295373.

It is an arithmetic number, because the mean of its divisors is an integer number (2071087200).

Almost surely, 2^40099328766 is an apocalyptic number.

40099328766 is an abundant number, since it is smaller than the sum of its proper divisors (59312856834).

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

40099328766 is a wasteful number, since it uses less digits than its factorization.

40099328766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380173 (or 380170 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The spelling of 40099328766 in words is "forty billion, ninety-nine million, three hundred twenty-eight thousand, seven hundred sixty-six".