11554666420442 has 32 divisors (see below), whose sum is σ = 19359302719680. Its totient is φ = 5140132058880.

The previous prime is 11554666420379. The next prime is 11554666420489. The reversal of 11554666420442 is 24402466645511.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19101848 + ... + 19697459.

It is an arithmetic number, because the mean of its divisors is an integer number (604978209990).

Almost surely, 2^{11554666420442} is an apocalyptic number.

11554666420442 is a deficient number, since it is larger than the sum of its proper divisors (7804636299238).

11554666420442 is a wasteful number, since it uses less digits than its factorization.

11554666420442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38799806.

The product of its (nonzero) digits is 5529600, while the sum is 50.

The spelling of 11554666420442 in words is "eleven trillion, five hundred fifty-four billion, six hundred sixty-six million, four hundred twenty thousand, four hundred forty-two".