40550566516660 has 144 divisors (see below), whose sum is σ = 93952839835008. Its totient is φ = 14665333858560.

The previous prime is 40550566516619. The next prime is 40550566516679. The reversal of 40550566516660 is 6661566505504.

40550566516660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17941942 + ... + 20075218.

It is an arithmetic number, because the mean of its divisors is an integer number (652450276632).

Almost surely, 2^{40550566516660} 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 40550566516660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46976419917504).

40550566516660 is an abundant number, since it is smaller than the sum of its proper divisors (53402273318348).

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

40550566516660 is a wasteful number, since it uses less digits than its factorization.

40550566516660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2133414 (or 2133381 counting only the distinct ones).

The product of its (nonzero) digits is 19440000, while the sum is 55.

The spelling of 40550566516660 in words is "forty trillion, five hundred fifty billion, five hundred sixty-six million, five hundred sixteen thousand, six hundred sixty".