12533353040 has 80 divisors (see below), whose sum is σ = 33033302400. Its totient is φ = 4384129536.

The previous prime is 12533352977. The next prime is 12533353069. The reversal of 12533353040 is 4035333521.

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 = 12533352994 and 12533353012.

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, 297380 + ... + 336899.

It is an arithmetic number, because the mean of its divisors is an integer number (412916280).

Almost surely, 2^12533353040 is an apocalyptic number.

12533353040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12533353040 is an abundant number, since it is smaller than the sum of its proper divisors (20499949360).

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

12533353040 is a wasteful number, since it uses less digits than its factorization.

12533353040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634324 (or 634318 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 29.

Adding to 12533353040 its reverse (4035333521), we get a palindrome (16568686561).

The spelling of 12533353040 in words is "twelve billion, five hundred thirty-three million, three hundred fifty-three thousand, forty".