40401663333340 has 12 divisors (see below), whose sum is σ = 84843493000056. Its totient is φ = 16160665333328.

The previous prime is 40401663333203. The next prime is 40401663333349. The reversal of 40401663333340 is 4333336610404.

It is a junction number, because it is equal to n+sod(n) for n = 40401663333293 and 40401663333302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40401663333349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1010041583314 + ... + 1010041583353.

It is an arithmetic number, because the mean of its divisors is an integer number (7070291083338).

Almost surely, 2^{40401663333340} is an apocalyptic number.

It is an amenable number.

40401663333340 is an abundant number, since it is smaller than the sum of its proper divisors (44441829666716).

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

40401663333340 is a wasteful number, since it uses less digits than its factorization.

40401663333340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020083166676 (or 2020083166674 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 40.

Adding to 40401663333340 its reverse (4333336610404), we get a palindrome (44734999943744).

The spelling of 40401663333340 in words is "forty trillion, four hundred one billion, six hundred sixty-three million, three hundred thirty-three thousand, three hundred forty".