16189927380 has 192 divisors, whose sum is σ = 56117698560. Its totient is φ = 3841257600.

The previous prime is 16189927367. The next prime is 16189927387. The reversal of 16189927380 is 8372998161.

16189927380 is a `hidden beast` number, since 161 + 89 + 9 + 27 + 380 = 666.

It is a super-2 number, since 2×16189927380² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16189927387) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 250185 + ... + 308175.

It is an arithmetic number, because the mean of its divisors is an integer number (292279680).

Almost surely, 2^16189927380 is an apocalyptic number.

16189927380 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 16189927380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28058849280).

16189927380 is an abundant number, since it is smaller than the sum of its proper divisors (39927771180).

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

16189927380 is a wasteful number, since it uses less digits than its factorization.

16189927380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58067 (or 58059 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The spelling of 16189927380 in words is "sixteen billion, one hundred eighty-nine million, nine hundred twenty-seven thousand, three hundred eighty".