11115464421542 has 64 divisors (see below), whose sum is σ = 19773031569984. Its totient is φ = 4638833418240.

The previous prime is 11115464421473. The next prime is 11115464421569. The reversal of 11115464421542 is 24512446451111.

It is a self number, because there is not a number n which added to its sum of digits gives 11115464421542.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3634403 + ... + 5953134.

It is an arithmetic number, because the mean of its divisors is an integer number (308953618281).

Almost surely, 2^{11115464421542} is an apocalyptic number.

11115464421542 is a deficient number, since it is larger than the sum of its proper divisors (8657567148442).

11115464421542 is a wasteful number, since it uses less digits than its factorization.

11115464421542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9587673.

The product of its digits is 153600, while the sum is 41.

The spelling of 11115464421542 in words is "eleven trillion, one hundred fifteen billion, four hundred sixty-four million, four hundred twenty-one thousand, five hundred forty-two".