13660405036242 has 128 divisors (see below), whose sum is σ = 30970559692800. Its totient is φ = 3991284688896.

The previous prime is 13660405036211. The next prime is 13660405036253. The reversal of 13660405036242 is 24263050406631.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13660405036194 and 13660405036203.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27097359 + ... + 27596877.

It is an arithmetic number, because the mean of its divisors is an integer number (241957497600).

Almost surely, 2^{13660405036242} is an apocalyptic number.

13660405036242 is an abundant number, since it is smaller than the sum of its proper divisors (17310154656558).

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

13660405036242 is a wasteful number, since it uses less digits than its factorization.

13660405036242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499800.

The product of its (nonzero) digits is 622080, while the sum is 42.

The spelling of 13660405036242 in words is "thirteen trillion, six hundred sixty billion, four hundred five million, thirty-six thousand, two hundred forty-two".