13155113432400 has 120 divisors (see below), whose sum is σ = 42141019406304. Its totient is φ = 3507963148800.

The previous prime is 13155113432341. The next prime is 13155113432429. The reversal of 13155113432400 is 423431155131.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119221255 + ... + 119331545.

Almost surely, 2^{13155113432400} is an apocalyptic number.

13155113432400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13155113432400 is an abundant number, since it is smaller than the sum of its proper divisors (28985905973904).

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

13155113432400 is a wasteful number, since it uses less digits than its factorization.

13155113432400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209709 (or 209698 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

Adding to 13155113432400 its reverse (423431155131), we get a palindrome (13578544587531).

The spelling of 13155113432400 in words is "thirteen trillion, one hundred fifty-five billion, one hundred thirteen million, four hundred thirty-two thousand, four hundred".