12154885316 has 18 divisors (see below), whose sum is σ = 24743874078. Its totient is φ = 5209236480.

The previous prime is 12154885157. The next prime is 12154885331. The reversal of 12154885316 is 61358845121.

12154885316 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 12121129216 + 33756100 = 110096^2 + 5810^2 .

It is a super-3 number, since 3×12154885316³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 5 ways as a sum of consecutive naturals, for example, 31007165 + ... + 31007556.

It is an arithmetic number, because the mean of its divisors is an integer number (1374659671).

Almost surely, 2^12154885316 is an apocalyptic number.

It is an amenable number.

12154885316 is an abundant number, since it is smaller than the sum of its proper divisors (12588988762).

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

12154885316 is a wasteful number, since it uses less digits than its factorization.

12154885316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62014739 (or 62014730 counting only the distinct ones).

The product of its digits is 230400, while the sum is 44.

The spelling of 12154885316 in words is "twelve billion, one hundred fifty-four million, eight hundred eighty-five thousand, three hundred sixteen".