16885553550550 has 24 divisors (see below), whose sum is σ = 31500325865736. Its totient is φ = 6734179213440.

The previous prime is 16885553550499. The next prime is 16885553550571. The reversal of 16885553550550 is 5505535558861.

It is a super-2 number, since 2×16885553550550² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 501038152 + ... + 501071851.

It is an arithmetic number, because the mean of its divisors is an integer number (1312513577739).

Almost surely, 2^{16885553550550} is an apocalyptic number.

16885553550550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16885553550550 is a deficient number, since it is larger than the sum of its proper divisors (14614772315186).

16885553550550 is a wasteful number, since it uses less digits than its factorization.

16885553550550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002110352 (or 1002110347 counting only the distinct ones).

The product of its (nonzero) digits is 90000000, while the sum is 61.

The spelling of 16885553550550 in words is "sixteen trillion, eight hundred eighty-five billion, five hundred fifty-three million, five hundred fifty thousand, five hundred fifty".