12601226660 has 96 divisors (see below), whose sum is σ = 30177100800. Its totient is φ = 4375226240.

The previous prime is 12601226633. The next prime is 12601226717. The reversal of 12601226660 is 6662210621.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3332651 + ... + 3336429.

It is an arithmetic number, because the mean of its divisors is an integer number (314344800).

Almost surely, 2^12601226660 is an apocalyptic number.

12601226660 is a gapful number since it is divisible by the number (10) 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 12601226660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15088550400).

12601226660 is an abundant number, since it is smaller than the sum of its proper divisors (17575874140).

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

12601226660 is a wasteful number, since it uses less digits than its factorization.

12601226660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4481 (or 4479 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 12601226660 in words is "twelve billion, six hundred one million, two hundred twenty-six thousand, six hundred sixty".