16663350 has 48 divisors (see below), whose sum is σ = 45086400. Its totient is φ = 4039200.

The previous prime is 16663321. The next prime is 16663351. The reversal of 16663350 is 5336661.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16663351) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3400 + ... + 6699.

It is an arithmetic number, because the mean of its divisors is an integer number (939300).

Almost surely, 2^16663350 is an apocalyptic number.

16663350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16663350 is an abundant number, since it is smaller than the sum of its proper divisors (28423050).

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

16663350 is a wasteful number, since it uses less digits than its factorization.

16663350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10125 (or 10120 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 16663350 is about 4082.0766773788. The cubic root of 16663350 is about 255.4195323874.

It can be divided in two parts, 16 and 663350, that added together give a palindrome (663366).

The spelling of 16663350 in words is "sixteen million, six hundred sixty-three thousand, three hundred fifty".