40566998784 has 144 divisors (see below), whose sum is σ = 120024203264. Its totient is φ = 12079411200.

The previous prime is 40566998707. The next prime is 40566998837. The reversal of 40566998784 is 48789966504.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243969 + ... + 375039.

Almost surely, 2^40566998784 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 40566998784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60012101632).

40566998784 is an abundant number, since it is smaller than the sum of its proper divisors (79457204480).

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

40566998784 is a wasteful number, since it uses less digits than its factorization.

40566998784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131134 (or 131120 counting only the distinct ones).

The product of its (nonzero) digits is 104509440, while the sum is 66.

The spelling of 40566998784 in words is "forty billion, five hundred sixty-six million, nine hundred ninety-eight thousand, seven hundred eighty-four".