16693251128 has 8 divisors (see below), whose sum is σ = 31299845880. Its totient is φ = 8346625560.

The previous prime is 16693251103. The next prime is 16693251139. The reversal of 16693251128 is 82115239661.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1043328188 + ... + 1043328203.

It is an arithmetic number, because the mean of its divisors is an integer number (3912480735).

Almost surely, 2^16693251128 is an apocalyptic number.

It is an amenable number.

16693251128 is a deficient number, since it is larger than the sum of its proper divisors (14606594752).

16693251128 is a wasteful number, since it uses less digits than its factorization.

16693251128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2086656397 (or 2086656393 counting only the distinct ones).

The product of its digits is 155520, while the sum is 44.

The spelling of 16693251128 in words is "sixteen billion, six hundred ninety-three million, two hundred fifty-one thousand, one hundred twenty-eight".