16677799488 has 168 divisors, whose sum is σ = 54707747328. Its totient is φ = 4758571008.

The previous prime is 16677799483. The next prime is 16677799507. The reversal of 16677799488 is 88499777661.

16677799488 is a `hidden beast` number, since 1 + 6 + 6 + 77 + 79 + 9 + 488 = 666.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (72).

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

It is not an unprimeable number, because it can be changed into a prime (16677799483) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3477220 + ... + 3482012.

Almost surely, 2^16677799488 is an apocalyptic number.

16677799488 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 16677799488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27353873664).

16677799488 is an abundant number, since it is smaller than the sum of its proper divisors (38029947840).

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

16677799488 is a wasteful number, since it uses less digits than its factorization.

16677799488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5681 (or 5668 counting only the distinct ones).

The product of its digits is 256048128, while the sum is 72.

The spelling of 16677799488 in words is "sixteen billion, six hundred seventy-seven million, seven hundred ninety-nine thousand, four hundred eighty-eight".