12150061056 has 144 divisors (see below), whose sum is σ = 40105119600. Its totient is φ = 3471409152.

The previous prime is 12150060977. The next prime is 12150061057. The reversal of 12150061056 is 65016005121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12150061057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81940 + ... + 176108.

It is an arithmetic number, because the mean of its divisors is an integer number (278507775).

Almost surely, 2^12150061056 is an apocalyptic number.

12150061056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12150061056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20052559800).

12150061056 is an abundant number, since it is smaller than the sum of its proper divisors (27955058544).

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

12150061056 is an equidigital number, since it uses as much as digits as its factorization.

12150061056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94204 (or 94181 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

Adding to 12150061056 its reverse (65016005121), we get a palindrome (77166066177).

It can be divided in two parts, 121500610 and 56, that added together give a triangular number (121500666 = T₁₅₅₈₈).

The spelling of 12150061056 in words is "twelve billion, one hundred fifty million, sixty-one thousand, fifty-six".