16705553500 has 48 divisors (see below), whose sum is σ = 36524490912. Its totient is φ = 6674976000.

The previous prime is 16705553441. The next prime is 16705553549. The reversal of 16705553500 is 535550761.

It is a self number, because there is not a number n which added to its sum of digits gives 16705553500.

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, 455860 + ... + 491140.

It is an arithmetic number, because the mean of its divisors is an integer number (760926894).

Almost surely, 2^16705553500 is an apocalyptic number.

16705553500 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 16705553500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18262245456).

16705553500 is an abundant number, since it is smaller than the sum of its proper divisors (19818937412).

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

16705553500 is a wasteful number, since it uses less digits than its factorization.

16705553500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36247 (or 36235 counting only the distinct ones).

The product of its (nonzero) digits is 78750, while the sum is 37.

The spelling of 16705553500 in words is "sixteen billion, seven hundred five million, five hundred fifty-three thousand, five hundred".