13541555044 has 12 divisors (see below), whose sum is σ = 23702583100. Its totient is φ = 6769388448.

The previous prime is 13541555039. The next prime is 13541555057. The reversal of 13541555044 is 44055514531.

It can be written as a sum of positive squares in 2 ways, for example, as 13464817444 + 76737600 = 116038^2 + 8760^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13541554994 and 13541555012.

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, 325179 + ... + 364450.

Almost surely, 2^13541555044 is an apocalyptic number.

It is an amenable number.

13541555044 is a deficient number, since it is larger than the sum of its proper divisors (10161028056).

13541555044 is a wasteful number, since it uses less digits than its factorization.

13541555044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694542 (or 694540 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 13541555044 in words is "thirteen billion, five hundred forty-one million, five hundred fifty-five thousand, forty-four".