12135588555 has 32 divisors (see below), whose sum is σ = 20517672960. Its totient is φ = 6112529280.

The previous prime is 12135588541. The next prime is 12135588571. The reversal of 12135588555 is 55588553121.

It is not a de Polignac number, because 12135588555 - 2⁷ = 12135588427 is a prime.

It is a super-5 number, since 5×12135588555⁵ (a number of 52 digits) contains 55555 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 195376 + ... + 249885.

It is an arithmetic number, because the mean of its divisors is an integer number (641177280).

Almost surely, 2^12135588555 is an apocalyptic number.

12135588555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12135588555 is a deficient number, since it is larger than the sum of its proper divisors (8382084405).

12135588555 is a wasteful number, since it uses less digits than its factorization.

12135588555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445371.

The product of its digits is 1200000, while the sum is 48.

The spelling of 12135588555 in words is "twelve billion, one hundred thirty-five million, five hundred eighty-eight thousand, five hundred fifty-five".