40306311507663 has 12 divisors (see below), whose sum is σ = 58327843688088. Its totient is φ = 26821205436240.

The previous prime is 40306311507659. The next prime is 40306311507689. The reversal of 40306311507663 is 36670511360304.

40306311507663 is a `hidden beast` number, since 4 + 0 + 3 + 0 + 631 + 1 + 5 + 0 + 7 + 6 + 6 + 3 = 666.

It is not a de Polignac number, because 40306311507663 - 2² = 40306311507659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40306311507613) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4139070045 + ... + 4139079782.

It is an arithmetic number, because the mean of its divisors is an integer number (4860653640674).

Almost surely, 2^{40306311507663} is an apocalyptic number.

40306311507663 is a deficient number, since it is larger than the sum of its proper divisors (18021532180425).

40306311507663 is a wasteful number, since it uses less digits than its factorization.

40306311507663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8278150374 (or 8278150371 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 45.

Adding to 40306311507663 its reverse (36670511360304), we get a palindrome (76976822867967).

The spelling of 40306311507663 in words is "forty trillion, three hundred six billion, three hundred eleven million, five hundred seven thousand, six hundred sixty-three".