40340355655 has 16 divisors (see below), whose sum is σ = 48526934400. Its totient is φ = 32193356832.

The previous prime is 40340355617. The next prime is 40340355667. The reversal of 40340355655 is 55655304304.

It is a cyclic number.

It is not a de Polignac number, because 40340355655 - 2¹⁵ = 40340322887 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 5737252 + ... + 5744278.

It is an arithmetic number, because the mean of its divisors is an integer number (3032933400).

Almost surely, 2^40340355655 is an apocalyptic number.

40340355655 is a deficient number, since it is larger than the sum of its proper divisors (8186578745).

40340355655 is a wasteful number, since it uses less digits than its factorization.

40340355655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9678.

The product of its (nonzero) digits is 540000, while the sum is 40.

Adding to 40340355655 its reverse (55655304304), we get a palindrome (95995659959).

The spelling of 40340355655 in words is "forty billion, three hundred forty million, three hundred fifty-five thousand, six hundred fifty-five".