16993421148 has 24 divisors (see below), whose sum is σ = 43255981440. Its totient is φ = 5149521520.

The previous prime is 16993421147. The next prime is 16993421183. The reversal of 16993421148 is 84112439961.

It is a happy number.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 16993421097 and 16993421106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16993421141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64368888 + ... + 64369151.

It is an arithmetic number, because the mean of its divisors is an integer number (1802332560).

Almost surely, 2^16993421148 is an apocalyptic number.

It is an amenable number.

16993421148 is an abundant number, since it is smaller than the sum of its proper divisors (26262560292).

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

16993421148 is a wasteful number, since it uses less digits than its factorization.

16993421148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128738057 (or 128738055 counting only the distinct ones).

The product of its digits is 373248, while the sum is 48.

The spelling of 16993421148 in words is "sixteen billion, nine hundred ninety-three million, four hundred twenty-one thousand, one hundred forty-eight".