40143440454550 has 12 divisors (see below), whose sum is σ = 74666799245556. Its totient is φ = 16057376181800.

The previous prime is 40143440454547. The next prime is 40143440454589. The reversal of 40143440454550 is 5545404434104.

It is a super-2 number, since 2×40143440454550² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40143440454497 and 40143440454506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 401434404496 + ... + 401434404595.

It is an arithmetic number, because the mean of its divisors is an integer number (6222233270463).

Almost surely, 2^{40143440454550} is an apocalyptic number.

40143440454550 is a deficient number, since it is larger than the sum of its proper divisors (34523358791006).

40143440454550 is a wasteful number, since it uses less digits than its factorization.

40143440454550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802868809103 (or 802868809098 counting only the distinct ones).

The product of its (nonzero) digits is 1536000, while the sum is 43.

Adding to 40143440454550 its reverse (5545404434104), we get a palindrome (45688844888654).

The spelling of 40143440454550 in words is "forty trillion, one hundred forty-three billion, four hundred forty million, four hundred fifty-four thousand, five hundred fifty".