11621645584266 has 16 divisors (see below), whose sum is σ = 23561692418304. Its totient is φ = 3820814986464.

The previous prime is 11621645584261. The next prime is 11621645584267. The reversal of 11621645584266 is 66248554612611.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11621645584261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13266718266 + ... + 13266719141.

It is an arithmetic number, because the mean of its divisors is an integer number (1472605776144).

Almost surely, 2^{11621645584266} is an apocalyptic number.

11621645584266 is an abundant number, since it is smaller than the sum of its proper divisors (11940046834038).

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

11621645584266 is a wasteful number, since it uses less digits than its factorization.

11621645584266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26533437485.

The product of its digits is 16588800, while the sum is 57.

The spelling of 11621645584266 in words is "eleven trillion, six hundred twenty-one billion, six hundred forty-five million, five hundred eighty-four thousand, two hundred sixty-six".