12651055100 has 18 divisors (see below), whose sum is σ = 27452789784. Its totient is φ = 5060422000.

The previous prime is 12651055097. The next prime is 12651055127. The reversal of 12651055100 is 155015621.

It is a self number, because there is not a number n which added to its sum of digits gives 12651055100.

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, 63255176 + ... + 63255375.

It is an arithmetic number, because the mean of its divisors is an integer number (1525154988).

Almost surely, 2^12651055100 is an apocalyptic number.

12651055100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12651055100 is an abundant number, since it is smaller than the sum of its proper divisors (14801734684).

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

12651055100 is a wasteful number, since it uses less digits than its factorization.

12651055100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126510565 (or 126510558 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 26.

The spelling of 12651055100 in words is "twelve billion, six hundred fifty-one million, fifty-five thousand, one hundred".