12556603032 has 64 divisors (see below), whose sum is σ = 32256576000. Its totient is φ = 4071010944.

The previous prime is 12556602997. The next prime is 12556603099. The reversal of 12556603032 is 23030665521.

It is a super-3 number, since 3×12556603032³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12556602984 and 12556603002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221194 + ... + 272102.

It is an arithmetic number, because the mean of its divisors is an integer number (504009000).

Almost surely, 2^12556603032 is an apocalyptic number.

12556603032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12556603032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16128288000).

12556603032 is an abundant number, since it is smaller than the sum of its proper divisors (19699972968).

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

12556603032 is a wasteful number, since it uses less digits than its factorization.

12556603032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51200 (or 51196 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 33.

The spelling of 12556603032 in words is "twelve billion, five hundred fifty-six million, six hundred three thousand, thirty-two".