13555603156 has 24 divisors (see below), whose sum is σ = 23879674280. Its totient is φ = 6732979200.

The previous prime is 13555603133. The next prime is 13555603163. The reversal of 13555603156 is 65130655531.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3498722500 + 10056880656 = 59150^2 + 100284^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377086 + ... + 411466.

Almost surely, 2^13555603156 is an apocalyptic number.

It is an amenable number.

13555603156 is a deficient number, since it is larger than the sum of its proper divisors (10324071124).

13555603156 is a wasteful number, since it uses less digits than its factorization.

13555603156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35035 (or 35033 counting only the distinct ones).

The product of its (nonzero) digits is 202500, while the sum is 40.

The spelling of 13555603156 in words is "thirteen billion, five hundred fifty-five million, six hundred three thousand, one hundred fifty-six".