16229429568 has 448 divisors, whose sum is σ = 53746237440. Its totient is φ = 4820497920.

The previous prime is 16229429551. The next prime is 16229429599. The reversal of 16229429568 is 86592492261.

16229429568 is a `hidden beast` number, since 1 + 6 + 2 + 294 + 295 + 68 = 666.

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

It is a congruent number.

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, 127790721 + ... + 127790847.

It is an arithmetic number, because the mean of its divisors is an integer number (119969280).

Almost surely, 2^16229429568 is an apocalyptic number.

16229429568 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 16229429568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26873118720).

16229429568 is an abundant number, since it is smaller than the sum of its proper divisors (37516807872).

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

16229429568 is an equidigital number, since it uses as much as digits as its factorization.

16229429568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254 (or 226 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The spelling of 16229429568 in words is "sixteen billion, two hundred twenty-nine million, four hundred twenty-nine thousand, five hundred sixty-eight".