12555130340 has 12 divisors (see below), whose sum is σ = 26365773756. Its totient is φ = 5022052128.

The previous prime is 12555130337. The next prime is 12555130363. The reversal of 12555130340 is 4303155521.

It can be written as a sum of positive squares in 2 ways, for example, as 1972070464 + 10583059876 = 44408^2 + 102874^2 .

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, 313878239 + ... + 313878278.

It is an arithmetic number, because the mean of its divisors is an integer number (2197147813).

Almost surely, 2^12555130340 is an apocalyptic number.

12555130340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12555130340 is an abundant number, since it is smaller than the sum of its proper divisors (13810643416).

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

12555130340 is a wasteful number, since it uses less digits than its factorization.

12555130340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627756526 (or 627756524 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

Adding to 12555130340 its reverse (4303155521), we get a palindrome (16858285861).

The spelling of 12555130340 in words is "twelve billion, five hundred fifty-five million, one hundred thirty thousand, three hundred forty".