16631124576 has 96 divisors (see below), whose sum is σ = 47737299456. Its totient is φ = 5027904000.

The previous prime is 16631124563. The next prime is 16631124581. The reversal of 16631124576 is 67542113661.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

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, 436866 + ... + 473406.

It is an arithmetic number, because the mean of its divisors is an integer number (497263536).

Almost surely, 2^16631124576 is an apocalyptic number.

16631124576 is a gapful number since it is divisible by the number (16) 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 16631124576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23868649728).

16631124576 is an abundant number, since it is smaller than the sum of its proper divisors (31106174880).

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

16631124576 is a wasteful number, since it uses less digits than its factorization.

16631124576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36996 (or 36988 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The spelling of 16631124576 in words is "sixteen billion, six hundred thirty-one million, one hundred twenty-four thousand, five hundred seventy-six".