13155216988 has 24 divisors (see below), whose sum is σ = 24850939680. Its totient is φ = 6074671680.

The previous prime is 13155216983. The next prime is 13155216989. The reversal of 13155216988 is 88961255131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13155216983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2462703 + ... + 2468038.

It is an arithmetic number, because the mean of its divisors is an integer number (1035455820).

Almost surely, 2^13155216988 is an apocalyptic number.

It is an amenable number.

13155216988 is a deficient number, since it is larger than the sum of its proper divisors (11695722692).

13155216988 is a wasteful number, since it uses less digits than its factorization.

13155216988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4930797 (or 4930795 counting only the distinct ones).

The product of its digits is 518400, while the sum is 49.

The spelling of 13155216988 in words is "thirteen billion, one hundred fifty-five million, two hundred sixteen thousand, nine hundred eighty-eight".