13331353651556 has 12 divisors (see below), whose sum is σ = 23361268449792. Its totient is φ = 6656705523048.

The previous prime is 13331353651543. The next prime is 13331353651573. The reversal of 13331353651556 is 65515635313331.

13331353651556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13331353651556² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2242822340 + ... + 2242828283.

It is an arithmetic number, because the mean of its divisors is an integer number (1946772370816).

Almost surely, 2^{13331353651556} is an apocalyptic number.

It is an amenable number.

13331353651556 is a deficient number, since it is larger than the sum of its proper divisors (10029914798236).

13331353651556 is a wasteful number, since it uses less digits than its factorization.

13331353651556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4485651370 (or 4485651368 counting only the distinct ones).

The product of its digits is 5467500, while the sum is 50.

Adding to 13331353651556 its reverse (65515635313331), we get a palindrome (78846988964887).

The spelling of 13331353651556 in words is "thirteen trillion, three hundred thirty-one billion, three hundred fifty-three million, six hundred fifty-one thousand, five hundred fifty-six".