12601077776 has 20 divisors (see below), whose sum is σ = 27902386752. Its totient is φ = 5400461856.

The previous prime is 12601077763. The next prime is 12601077779. The reversal of 12601077776 is 67777010621.

It is a super-2 number, since 2×12601077776² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (12601077779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56254700 + ... + 56254923.

Almost surely, 2^12601077776 is an apocalyptic number.

12601077776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12601077776 is an abundant number, since it is smaller than the sum of its proper divisors (15301308976).

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

12601077776 is a wasteful number, since it uses less digits than its factorization.

12601077776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112509638 (or 112509632 counting only the distinct ones).

The product of its (nonzero) digits is 172872, while the sum is 44.

The spelling of 12601077776 in words is "twelve billion, six hundred one million, seventy-seven thousand, seven hundred seventy-six".