16553617650000 has 600 divisors, whose sum is σ = 60062559812640. Its totient is φ = 4401203040000.

The previous prime is 16553617649969. The next prime is 16553617650077. The reversal of 16553617650000 is 5671635561.

16553617650000 is a `hidden beast` number, since 1 + 65 + 536 + 1 + 7 + 6 + 50 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (600).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1405344111 + ... + 1405355889.

Almost surely, 2^{16553617650000} is an apocalyptic number.

16553617650000 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 16553617650000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30031279906320).

16553617650000 is an abundant number, since it is smaller than the sum of its proper divisors (43508942162640).

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

16553617650000 is an equidigital number, since it uses as much as digits as its factorization.

16553617650000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12171 (or 12136 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 45.

The spelling of 16553617650000 in words is "sixteen trillion, five hundred fifty-three billion, six hundred seventeen million, six hundred fifty thousand".