12553045040 has 80 divisors (see below), whose sum is σ = 30031057056. Its totient is φ = 4877107200.

The previous prime is 12553045031. The next prime is 12553045061. The reversal of 12553045040 is 4054035521.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 12553044994 and 12553045012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 612560 + ... + 632720.

Almost surely, 2^12553045040 is an apocalyptic number.

12553045040 is a gapful number since it is divisible by the number (10) 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 12553045040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15015528528).

12553045040 is an abundant number, since it is smaller than the sum of its proper divisors (17478012016).

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

12553045040 is a wasteful number, since it uses less digits than its factorization.

12553045040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20398 (or 20392 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The spelling of 12553045040 in words is "twelve billion, five hundred fifty-three million, forty-five thousand, forty".