16553430265344 has 240 divisors, whose sum is σ = 51494386255488. Its totient is φ = 4711562784768.

The previous prime is 16553430265277. The next prime is 16553430265363. The reversal of 16553430265344 is 44356203435561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19376299 + ... + 20212565.

Almost surely, 2^{16553430265344} is an apocalyptic number.

16553430265344 is a gapful number since it is divisible by the number (14) 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 16553430265344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25747193127744).

16553430265344 is an abundant number, since it is smaller than the sum of its proper divisors (34940955990144).

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

16553430265344 is an equidigital number, since it uses as much as digits as its factorization.

16553430265344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836565 (or 836542 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 51.

The spelling of 16553430265344 in words is "sixteen trillion, five hundred fifty-three billion, four hundred thirty million, two hundred sixty-five thousand, three hundred forty-four".