33645234046 has 4 divisors (see below), whose sum is σ = 50467851072. Its totient is φ = 16822617022.

The previous prime is 33645234043. The next prime is 33645234059. The reversal of 33645234046 is 64043254633.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64043254633 = 47 ⋅1362622439.

It is a super-2 number, since 2×33645234046² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33645234043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8411308510 + ... + 8411308513.

It is an arithmetic number, because the mean of its divisors is an integer number (12616962768).

Almost surely, 2^33645234046 is an apocalyptic number.

33645234046 is a deficient number, since it is larger than the sum of its proper divisors (16822617026).

33645234046 is a wasteful number, since it uses less digits than its factorization.

33645234046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16822617025.

The product of its (nonzero) digits is 622080, while the sum is 40.

Adding to 33645234046 its reverse (64043254633), we get a palindrome (97688488679).

The spelling of 33645234046 in words is "thirty-three billion, six hundred forty-five million, two hundred thirty-four thousand, forty-six".