11618442990806 has 16 divisors (see below), whose sum is σ = 17852237706240. Its totient is φ = 5668443920040.

The previous prime is 11618442990797. The next prime is 11618442990809. The reversal of 11618442990806 is 60809924481611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11618442990809) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 186676526 + ... + 186738753.

It is an arithmetic number, because the mean of its divisors is an integer number (1115764856640).

Almost surely, 2^{11618442990806} is an apocalyptic number.

11618442990806 is a deficient number, since it is larger than the sum of its proper divisors (6233794715434).

11618442990806 is a wasteful number, since it uses less digits than its factorization.

11618442990806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373415659.

The product of its (nonzero) digits is 5971968, while the sum is 59.

The spelling of 11618442990806 in words is "eleven trillion, six hundred eighteen billion, four hundred forty-two million, nine hundred ninety thousand, eight hundred six".