11618816442 has 64 divisors (see below), whose sum is σ = 24269808384. Its totient is φ = 3704762880.

The previous prime is 11618816387. The next prime is 11618816453. The reversal of 11618816442 is 24461881611.

It is a junction number, because it is equal to n+sod(n) for n = 11618816394 and 11618816403.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7202428 + ... + 7204040.

It is an arithmetic number, because the mean of its divisors is an integer number (379215756).

Almost surely, 2^11618816442 is an apocalyptic number.

11618816442 is an abundant number, since it is smaller than the sum of its proper divisors (12650991942).

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

11618816442 is a wasteful number, since it uses less digits than its factorization.

11618816442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183.

The product of its digits is 73728, while the sum is 42.

The spelling of 11618816442 in words is "eleven billion, six hundred eighteen million, eight hundred sixteen thousand, four hundred forty-two".