16661753076 has 12 divisors (see below), whose sum is σ = 38877423872. Its totient is φ = 5553917688.

The previous prime is 16661753033. The next prime is 16661753083. The reversal of 16661753076 is 67035716661.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×16661753076³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 694239700 + ... + 694239723.

Almost surely, 2^16661753076 is an apocalyptic number.

It is an amenable number.

16661753076 is an abundant number, since it is smaller than the sum of its proper divisors (22215670796).

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

16661753076 is a wasteful number, since it uses less digits than its factorization.

16661753076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388479430 (or 1388479428 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 48.

The spelling of 16661753076 in words is "sixteen billion, six hundred sixty-one million, seven hundred fifty-three thousand, seventy-six".