12555414020 has 12 divisors (see below), whose sum is σ = 26366369484. Its totient is φ = 5022165600.

The previous prime is 12555413977. The next prime is 12555414031. The reversal of 12555414020 is 2041455521.

It can be written as a sum of positive squares in 2 ways, for example, as 4132946944 + 8422467076 = 64288^2 + 91774^2 .

It is a super-2 number, since 2×12555414020² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313885331 + ... + 313885370.

It is an arithmetic number, because the mean of its divisors is an integer number (2197197457).

Almost surely, 2^12555414020 is an apocalyptic number.

12555414020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12555414020 is an abundant number, since it is smaller than the sum of its proper divisors (13810955464).

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

12555414020 is a wasteful number, since it uses less digits than its factorization.

12555414020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627770710 (or 627770708 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

Adding to 12555414020 its reverse (2041455521), we get a palindrome (14596869541).

The spelling of 12555414020 in words is "twelve billion, five hundred fifty-five million, four hundred fourteen thousand, twenty".