40465355356405 has 48 divisors (see below), whose sum is σ = 60853473432576. Its totient is φ = 25273021962240.

The previous prime is 40465355356373. The next prime is 40465355356411. The reversal of 40465355356405 is 50465355356404.

It is a happy number.

40465355356405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40465355356405 - 2⁵ = 40465355356373 is a prime.

It is a Duffinian number.

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, 64211104 + ... + 64838233.

It is an arithmetic number, because the mean of its divisors is an integer number (1267780696512).

Almost surely, 2^{40465355356405} is an apocalyptic number.

It is an amenable number.

40465355356405 is a deficient number, since it is larger than the sum of its proper divisors (20388118076171).

40465355356405 is a wasteful number, since it uses less digits than its factorization.

40465355356405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129049414 (or 129049397 counting only the distinct ones).

The product of its (nonzero) digits is 64800000, while the sum is 55.

Subtracting 40465355356405 from its reverse (50465355356404), we obtain a palindrome (9999999999999).

The spelling of 40465355356405 in words is "forty trillion, four hundred sixty-five billion, three hundred fifty-five million, three hundred fifty-six thousand, four hundred five".