16650551200220 has 24 divisors (see below), whose sum is σ = 39961322880864. Its totient is φ = 5708760411456.

The previous prime is 16650551200219. The next prime is 16650551200259. The reversal of 16650551200220 is 2200215505661.

It is a super-2 number, since 2×16650551200220² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

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, 59466254147 + ... + 59466254426.

It is an arithmetic number, because the mean of its divisors is an integer number (1665055120036).

Almost surely, 2^{16650551200220} is an apocalyptic number.

16650551200220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16650551200220 is an abundant number, since it is smaller than the sum of its proper divisors (23310771680644).

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

16650551200220 is a wasteful number, since it uses less digits than its factorization.

16650551200220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118932508589 (or 118932508587 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

Adding to 16650551200220 its reverse (2200215505661), we get a palindrome (18850766705881).

The spelling of 16650551200220 in words is "sixteen trillion, six hundred fifty billion, five hundred fifty-one million, two hundred thousand, two hundred twenty".