12251041660 has 48 divisors (see below), whose sum is σ = 30224954592. Its totient is φ = 4112236800.

The previous prime is 12251041651. The next prime is 12251041661. The reversal of 12251041660 is 6614015221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12251041661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2138931 + ... + 2144650.

It is an arithmetic number, because the mean of its divisors is an integer number (629686554).

Almost surely, 2^12251041660 is an apocalyptic number.

12251041660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12251041660 is an abundant number, since it is smaller than the sum of its proper divisors (17973912932).

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

12251041660 is a wasteful number, since it uses less digits than its factorization.

12251041660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4283614 (or 4283612 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 12251041660 its reverse (6614015221), we get a palindrome (18865056881).

The spelling of 12251041660 in words is "twelve billion, two hundred fifty-one million, forty-one thousand, six hundred sixty".