11621108818 has 16 divisors (see below), whose sum is σ = 19629792000. Its totient is φ = 5111924400.

The previous prime is 11621108803. The next prime is 11621108827. The reversal of 11621108818 is 81880112611.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8519193 + ... + 8520556.

It is an arithmetic number, because the mean of its divisors is an integer number (1226862000).

Almost surely, 2^11621108818 is an apocalyptic number.

11621108818 is a deficient number, since it is larger than the sum of its proper divisors (8008683182).

11621108818 is a wasteful number, since it uses less digits than its factorization.

11621108818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17039793.

The product of its (nonzero) digits is 6144, while the sum is 37.

The spelling of 11621108818 in words is "eleven billion, six hundred twenty-one million, one hundred eight thousand, eight hundred eighteen".