13611542540406 has 16 divisors (see below), whose sum is σ = 27669365164848. Its totient is φ = 4462800832800.

The previous prime is 13611542540369. The next prime is 13611542540537. The reversal of 13611542540406 is 60404524511631.

It is a congruent 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, 18595003105 + ... + 18595003836.

It is an arithmetic number, because the mean of its divisors is an integer number (1729335322803).

Almost surely, 2^{13611542540406} is an apocalyptic number.

13611542540406 is an abundant number, since it is smaller than the sum of its proper divisors (14057822624442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13611542540406 is a wasteful number, since it uses less digits than its factorization.

13611542540406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37190007007.

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 13611542540406 in words is "thirteen trillion, six hundred eleven billion, five hundred forty-two million, five hundred forty thousand, four hundred six".