16622949168 has 320 divisors, whose sum is σ = 55809761280. Its totient is φ = 4639410432.

The previous prime is 16622949157. The next prime is 16622949181. The reversal of 16622949168 is 86194922661.

16622949168 is a `hidden beast` number, since 1 + 6 + 622 + 9 + 4 + 9 + 1 + 6 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25851855 + ... + 25852497.

It is an arithmetic number, because the mean of its divisors is an integer number (174405504).

Almost surely, 2^16622949168 is an apocalyptic number.

16622949168 is a gapful number since it is divisible by the number (18) 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 16622949168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27904880640).

16622949168 is an abundant number, since it is smaller than the sum of its proper divisors (39186812112).

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

16622949168 is a wasteful number, since it uses less digits than its factorization.

16622949168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853 (or 841 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The spelling of 16622949168 in words is "sixteen billion, six hundred twenty-two million, nine hundred forty-nine thousand, one hundred sixty-eight".