13541223554 has 16 divisors (see below), whose sum is σ = 21542466456. Its totient is φ = 6361728000.

The previous prime is 13541223529. The next prime is 13541223583. The reversal of 13541223554 is 45532214531.

It can be written as a sum of positive squares in 4 ways, for example, as 13113685225 + 427538329 = 114515^2 + 20677^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310907 + ... + 351774.

Almost surely, 2^13541223554 is an apocalyptic number.

13541223554 is a deficient number, since it is larger than the sum of its proper divisors (8001242902).

13541223554 is a wasteful number, since it uses less digits than its factorization.

13541223554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663301.

The product of its digits is 72000, while the sum is 35.

The spelling of 13541223554 in words is "thirteen billion, five hundred forty-one million, two hundred twenty-three thousand, five hundred fifty-four".