13655379988 has 48 divisors (see below), whose sum is σ = 25463828880. Its totient is φ = 6395203584.

The previous prime is 13655379967. The next prime is 13655379989. The reversal of 13655379988 is 88997355631.

It can be written as a sum of positive squares in 8 ways, for example, as 406909584 + 13248470404 = 20172^2 + 115102^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13655379989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1510570 + ... + 1519582.

It is an arithmetic number, because the mean of its divisors is an integer number (530496435).

Almost surely, 2^13655379988 is an apocalyptic number.

It is an amenable number.

13655379988 is a deficient number, since it is larger than the sum of its proper divisors (11808448892).

13655379988 is a wasteful number, since it uses less digits than its factorization.

13655379988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9436 (or 9434 counting only the distinct ones).

The product of its digits is 48988800, while the sum is 64.

The spelling of 13655379988 in words is "thirteen billion, six hundred fifty-five million, three hundred seventy-nine thousand, nine hundred eighty-eight".