11780346156 has 48 divisors (see below), whose sum is σ = 28635223680. Its totient is φ = 3766065280.

The previous prime is 11780346101. The next prime is 11780346181. The reversal of 11780346156 is 65164308711.

11780346156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173886 + ... + 231941.

It is an arithmetic number, because the mean of its divisors is an integer number (596567160).

Almost surely, 2^11780346156 is an apocalyptic number.

It is an amenable number.

11780346156 is an abundant number, since it is smaller than the sum of its proper divisors (16854877524).

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

11780346156 is a wasteful number, since it uses less digits than its factorization.

11780346156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405934 (or 405932 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 11780346156 in words is "eleven billion, seven hundred eighty million, three hundred forty-six thousand, one hundred fifty-six".