11955766328 has 16 divisors (see below), whose sum is σ = 24454976760. Its totient is φ = 5434439200.

The previous prime is 11955766327. The next prime is 11955766363. The reversal of 11955766328 is 82366755911.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11955766328.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11955766327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67930403 + ... + 67930578.

Almost surely, 2^11955766328 is an apocalyptic number.

It is an amenable number.

11955766328 is an abundant number, since it is smaller than the sum of its proper divisors (12499210432).

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

11955766328 is a wasteful number, since it uses less digits than its factorization.

11955766328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135860998 (or 135860994 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 53.

The spelling of 11955766328 in words is "eleven billion, nine hundred fifty-five million, seven hundred sixty-six thousand, three hundred twenty-eight".