16690794624 has 192 divisors, whose sum is σ = 55792351680. Its totient is φ = 4690483200.

The previous prime is 16690794623. The next prime is 16690794649. The reversal of 16690794624 is 42649709661.

It is a happy number.

16690794624 is a `hidden beast` number, since 1 + 6 + 6 + 9 + 0 + 7 + 9 + 4 + 624 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is not an unprimeable number, because it can be changed into a prime (16690794623) 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, 474939 + ... + 508869.

It is an arithmetic number, because the mean of its divisors is an integer number (290585165).

Almost surely, 2^16690794624 is an apocalyptic number.

16690794624 is a gapful number since it is divisible by the number (14) 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 16690794624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27896175840).

16690794624 is an abundant number, since it is smaller than the sum of its proper divisors (39101557056).

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

16690794624 is a wasteful number, since it uses less digits than its factorization.

16690794624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34019 (or 34004 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The spelling of 16690794624 in words is "sixteen billion, six hundred ninety million, seven hundred ninety-four thousand, six hundred twenty-four".