12558708998 has 32 divisors (see below), whose sum is σ = 21463564032. Its totient is φ = 5455357600.

The previous prime is 12558708997. The next prime is 12558709003. The reversal of 12558708998 is 89980785521.

It is a self number, because there is not a number n which added to its sum of digits gives 12558708998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12558708991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 577808 + ... + 599148.

It is an arithmetic number, because the mean of its divisors is an integer number (670736376).

Almost surely, 2^12558708998 is an apocalyptic number.

12558708998 is a deficient number, since it is larger than the sum of its proper divisors (8904855034).

12558708998 is a wasteful number, since it uses less digits than its factorization.

12558708998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22540.

The product of its (nonzero) digits is 14515200, while the sum is 62.

The spelling of 12558708998 in words is "twelve billion, five hundred fifty-eight million, seven hundred eight thousand, nine hundred ninety-eight".