33133445042 has 4 divisors (see below), whose sum is σ = 49700167566. Its totient is φ = 16566722520.

The previous prime is 33133445029. The next prime is 33133445071. The reversal of 33133445042 is 24054433133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24054433133 = 61609 ⋅390437.

It can be written as a sum of positive squares in only one way, i.e., 21245686081 + 11887758961 = 145759^2 + 109031^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8283361259 + ... + 8283361262.

Almost surely, 2^33133445042 is an apocalyptic number.

33133445042 is a deficient number, since it is larger than the sum of its proper divisors (16566722524).

33133445042 is a wasteful number, since it uses less digits than its factorization.

33133445042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16566722523.

The product of its (nonzero) digits is 51840, while the sum is 32.

Adding to 33133445042 its reverse (24054433133), we get a palindrome (57187878175).

The spelling of 33133445042 in words is "thirty-three billion, one hundred thirty-three million, four hundred forty-five thousand, forty-two".