12611306900 has 18 divisors (see below), whose sum is σ = 27366536190. Its totient is φ = 5044522720.

The previous prime is 12611306863. The next prime is 12611306927. The reversal of 12611306900 is 960311621.

It can be written as a sum of positive squares in 3 ways, for example, as 4526060176 + 8085246724 = 67276^2 + 89918^2 .

It is a super-2 number, since 2×12611306900² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63056435 + ... + 63056634.

Almost surely, 2^12611306900 is an apocalyptic number.

12611306900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12611306900 is an abundant number, since it is smaller than the sum of its proper divisors (14755229290).

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

12611306900 is a wasteful number, since it uses less digits than its factorization.

12611306900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126113083 (or 126113076 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 29.

The spelling of 12611306900 in words is "twelve billion, six hundred eleven million, three hundred six thousand, nine hundred".