16944531630 has 32 divisors (see below), whose sum is σ = 43795098144. Its totient is φ = 4170961536.

The previous prime is 16944531623. The next prime is 16944531649. The reversal of 16944531630 is 3613544961.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 21723369 + ... + 21724148.

It is an arithmetic number, because the mean of its divisors is an integer number (1368596817).

Almost surely, 2^16944531630 is an apocalyptic number.

16944531630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16944531630 is an abundant number, since it is smaller than the sum of its proper divisors (26850566514).

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

16944531630 is a wasteful number, since it uses less digits than its factorization.

16944531630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43447540.

The product of its (nonzero) digits is 233280, while the sum is 42.

The spelling of 16944531630 in words is "sixteen billion, nine hundred forty-four million, five hundred thirty-one thousand, six hundred thirty".