16668929088 has 504 divisors, whose sum is σ = 58310995392. Its totient is φ = 4629021696.

The previous prime is 16668929087. The next prime is 16668929107. The reversal of 16668929088 is 88092986661.

It is a tau number, because it is divible by the number of its divisors (504).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (16668929087) 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, 155784331 + ... + 155784437.

Almost surely, 2^16668929088 is an apocalyptic number.

16668929088 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 16668929088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29155497696).

16668929088 is an abundant number, since it is smaller than the sum of its proper divisors (41642066304).

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

16668929088 is an frugal number, since it uses more digits than its factorization.

16668929088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 63.

The spelling of 16668929088 in words is "sixteen billion, six hundred sixty-eight million, nine hundred twenty-nine thousand, eighty-eight".