13255335640402 has 16 divisors (see below), whose sum is σ = 21052817866080. Its totient is φ = 6237738054208.

The previous prime is 13255335640373. The next prime is 13255335640451. The reversal of 13255335640402 is 20404653355231.

It is a super-2 number, since 2×13255335640402² (a number of 27 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 1196913 + ... + 5286139.

It is an arithmetic number, because the mean of its divisors is an integer number (1315801116630).

Almost surely, 2^{13255335640402} is an apocalyptic number.

13255335640402 is a deficient number, since it is larger than the sum of its proper divisors (7797482225678).

13255335640402 is a wasteful number, since it uses less digits than its factorization.

13255335640402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4184585.

The product of its (nonzero) digits is 1296000, while the sum is 43.

Adding to 13255335640402 its reverse (20404653355231), we get a palindrome (33659988995633).

The spelling of 13255335640402 in words is "thirteen trillion, two hundred fifty-five billion, three hundred thirty-five million, six hundred forty thousand, four hundred two".