16705649088 has 112 divisors (see below), whose sum is σ = 49498869760. Its totient is φ = 5524630272.

The previous prime is 16705649071. The next prime is 16705649101. The reversal of 16705649088 is 88094650761.

16705649088 is a `hidden beast` number, since 1 + 6 + 70 + 5 + 6 + 490 + 88 = 666.

It is a super-2 number, since 2×16705649088² (a number of 21 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 181395 + ... + 257517.

Almost surely, 2^16705649088 is an apocalyptic number.

16705649088 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 16705649088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24749434880).

16705649088 is an abundant number, since it is smaller than the sum of its proper divisors (32793220672).

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

16705649088 is a wasteful number, since it uses less digits than its factorization.

16705649088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76271 (or 76255 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 16705649088 in words is "sixteen billion, seven hundred five million, six hundred forty-nine thousand, eighty-eight".