12611405480 has 16 divisors (see below), whose sum is σ = 28375662420. Its totient is φ = 5044562176.

The previous prime is 12611405453. The next prime is 12611405497. The reversal of 12611405480 is 8450411621.

It can be written as a sum of positive squares in 2 ways, for example, as 12428236324 + 183169156 = 111482^2 + 13534^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157642529 + ... + 157642608.

Almost surely, 2^12611405480 is an apocalyptic number.

12611405480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12611405480 is an abundant number, since it is smaller than the sum of its proper divisors (15764256940).

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

12611405480 is a wasteful number, since it uses less digits than its factorization.

12611405480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315285148 (or 315285144 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The spelling of 12611405480 in words is "twelve billion, six hundred eleven million, four hundred five thousand, four hundred eighty".