16622100 has 216 divisors, whose sum is σ = 60121152. Its totient is φ = 3801600.

The previous prime is 16622087. The next prime is 16622101. The reversal of 16622100 is 122661.

It is a happy number.

16622100 is a `hidden beast` number, since 1 + 662 + 2 + 1 + 0 + 0 = 666.

16622100 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16622101) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 227664 + ... + 227736.

Almost surely, 2^16622100 is an apocalyptic number.

16622100 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 16622100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30060576).

16622100 is an abundant number, since it is smaller than the sum of its proper divisors (43499052).

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

16622100 is a wasteful number, since it uses less digits than its factorization.

16622100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 16622100 is about 4077.0209712485. The cubic root of 16622100 is about 255.2085951777.

Adding to 16622100 its reverse (122661), we get a palindrome (16744761).

The spelling of 16622100 in words is "sixteen million, six hundred twenty-two thousand, one hundred".