11651820908 has 48 divisors (see below), whose sum is σ = 26417099520. Its totient is φ = 4366903104.

The previous prime is 11651820871. The next prime is 11651820959. The reversal of 11651820908 is 80902815611.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 835466 + ... + 849297.

It is an arithmetic number, because the mean of its divisors is an integer number (550356240).

Almost surely, 2^11651820908 is an apocalyptic number.

It is an amenable number.

11651820908 is an abundant number, since it is smaller than the sum of its proper divisors (14765278612).

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

11651820908 is a wasteful number, since it uses less digits than its factorization.

11651820908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684806 (or 1684804 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 41.

The spelling of 11651820908 in words is "eleven billion, six hundred fifty-one million, eight hundred twenty thousand, nine hundred eight".