12453331643040 has 96 divisors (see below), whose sum is σ = 39259708750080. Its totient is φ = 3318203649024.

The previous prime is 12453331643029. The next prime is 12453331643069. The reversal of 12453331643040 is 4034613335421.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 12453331643040.

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, 9893080 + ... + 11080599.

It is an arithmetic number, because the mean of its divisors is an integer number (408955299480).

Almost surely, 2^{12453331643040} is an apocalyptic number.

12453331643040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12453331643040 is an abundant number, since it is smaller than the sum of its proper divisors (26806377107040).

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

12453331643040 is a wasteful number, since it uses less digits than its factorization.

12453331643040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20974934 (or 20974926 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 39.

Adding to 12453331643040 its reverse (4034613335421), we get a palindrome (16487944978461).

The spelling of 12453331643040 in words is "twelve trillion, four hundred fifty-three billion, three hundred thirty-one million, six hundred forty-three thousand, forty".