13453216440 has 32 divisors (see below), whose sum is σ = 40359649680. Its totient is φ = 3587524352.

The previous prime is 13453216421. The next prime is 13453216451. The reversal of 13453216440 is 4461235431.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56054949 + ... + 56055188.

Almost surely, 2^13453216440 is an apocalyptic number.

13453216440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13453216440 is an abundant number, since it is smaller than the sum of its proper divisors (26906433240).

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

13453216440 is a wasteful number, since it uses less digits than its factorization.

13453216440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112110151 (or 112110147 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The spelling of 13453216440 in words is "thirteen billion, four hundred fifty-three million, two hundred sixteen thousand, four hundred forty".