16227692388 has 192 divisors, whose sum is σ = 44726026240. Its totient is φ = 5080838400.

The previous prime is 16227692359. The next prime is 16227692401. The reversal of 16227692388 is 88329672261.

16227692388 is a `hidden beast` number, since 1 + 622 + 7 + 6 + 9 + 2 + 3 + 8 + 8 = 666.

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

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, 16374573 + ... + 16375563.

Almost surely, 2^16227692388 is an apocalyptic number.

16227692388 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 16227692388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22363013120).

16227692388 is an abundant number, since it is smaller than the sum of its proper divisors (28498333852).

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

16227692388 is a wasteful number, since it uses less digits than its factorization.

16227692388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175 (or 1167 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The spelling of 16227692388 in words is "sixteen billion, two hundred twenty-seven million, six hundred ninety-two thousand, three hundred eighty-eight".