16604773632 has 288 divisors, whose sum is σ = 50861260800. Its totient is φ = 5340321792.

The previous prime is 16604773597. The next prime is 16604773643. The reversal of 16604773632 is 23637740661.

16604773632 is a `hidden beast` number, since 1 + 6 + 6 + 0 + 4 + 7 + 7 + 3 + 632 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25663933 + ... + 25664579.

It is an arithmetic number, because the mean of its divisors is an integer number (176601600).

Almost surely, 2^16604773632 is an apocalyptic number.

16604773632 is a gapful number since it is divisible by the number (12) 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 16604773632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25430630400).

16604773632 is an abundant number, since it is smaller than the sum of its proper divisors (34256487168).

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

16604773632 is an equidigital number, since it uses as much as digits as its factorization.

16604773632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798 (or 778 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 45.

The spelling of 16604773632 in words is "sixteen billion, six hundred four million, seven hundred seventy-three thousand, six hundred thirty-two".