12051561148 has 24 divisors (see below), whose sum is σ = 24218449920. Its totient is φ = 5189667120.

The previous prime is 12051561143. The next prime is 12051561199. The reversal of 12051561148 is 84116515021.

It is a super-2 number, since 2×12051561148² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12051561143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7207036 + ... + 7208707.

It is an arithmetic number, because the mean of its divisors is an integer number (1009102080).

Almost surely, 2^12051561148 is an apocalyptic number.

It is an amenable number.

12051561148 is an abundant number, since it is smaller than the sum of its proper divisors (12166888772).

12051561148 is a wasteful number, since it uses less digits than its factorization.

12051561148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14415777 (or 14415775 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 34.

The spelling of 12051561148 in words is "twelve billion, fifty-one million, five hundred sixty-one thousand, one hundred forty-eight".