33238975816 has 8 divisors (see below), whose sum is σ = 62323079670. Its totient is φ = 16619487904.

The previous prime is 33238975793. The next prime is 33238975817. The reversal of 33238975816 is 61857983233.

It can be written as a sum of positive squares in only one way, i.e., 28340375716 + 4898600100 = 168346^2 + 69990^2 .

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

It is a super-2 number, since 2×33238975816² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (33238975817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2077435981 + ... + 2077435996.

Almost surely, 2^33238975816 is an apocalyptic number.

It is an amenable number.

33238975816 is a deficient number, since it is larger than the sum of its proper divisors (29084103854).

33238975816 is a wasteful number, since it uses less digits than its factorization.

33238975816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4154871983 (or 4154871979 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 55.

The spelling of 33238975816 in words is "thirty-three billion, two hundred thirty-eight million, nine hundred seventy-five thousand, eight hundred sixteen".