11861960616 has 48 divisors (see below), whose sum is σ = 35046704160. Its totient is φ = 3594533280.

The previous prime is 11861960597. The next prime is 11861960641. The reversal of 11861960616 is 61606916811.

It is a happy number.

11861960616 is a `hidden beast` number, since 1 + 18 + 6 + 19 + 6 + 0 + 616 = 666.

It is a super-2 number, since 2×11861960616² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7487820 + ... + 7489403.

It is an arithmetic number, because the mean of its divisors is an integer number (730139670).

Almost surely, 2^11861960616 is an apocalyptic number.

It is an amenable number.

11861960616 is an abundant number, since it is smaller than the sum of its proper divisors (23184743544).

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

11861960616 is a wasteful number, since it uses less digits than its factorization.

11861960616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14977246 (or 14977239 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The spelling of 11861960616 in words is "eleven billion, eight hundred sixty-one million, nine hundred sixty thousand, six hundred sixteen".