12551126650 has 12 divisors (see below), whose sum is σ = 23345095662. Its totient is φ = 5020450640.

The previous prime is 12551126633. The next prime is 12551126669. The reversal of 12551126650 is 5662115521.

It can be written as a sum of positive squares in 3 ways, for example, as 7464441609 + 5086685041 = 86397^2 + 71321^2 .

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, 125511217 + ... + 125511316.

Almost surely, 2^12551126650 is an apocalyptic number.

12551126650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12551126650 is a deficient number, since it is larger than the sum of its proper divisors (10793969012).

12551126650 is a wasteful number, since it uses less digits than its factorization.

12551126650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251022545 (or 251022540 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 34.

The spelling of 12551126650 in words is "twelve billion, five hundred fifty-one million, one hundred twenty-six thousand, six hundred fifty".