16993661034 has 128 divisors (see below), whose sum is σ = 40726167552. Its totient is φ = 4625449920.

The previous prime is 16993661033. The next prime is 16993661071. The reversal of 16993661034 is 43016639961.

It is not an unprimeable number, because it can be changed into a prime (16993661033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 31066749 + ... + 31067295.

It is an arithmetic number, because the mean of its divisors is an integer number (318173184).

Almost surely, 2^16993661034 is an apocalyptic number.

16993661034 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16993661034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20363083776).

16993661034 is an abundant number, since it is smaller than the sum of its proper divisors (23732506518).

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

16993661034 is a wasteful number, since it uses less digits than its factorization.

16993661034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920.

The product of its (nonzero) digits is 629856, while the sum is 48.

The spelling of 16993661034 in words is "sixteen billion, nine hundred ninety-three million, six hundred sixty-one thousand, thirty-four".