33223431157 has 4 divisors (see below), whose sum is σ = 37969635616. Its totient is φ = 28477226700.

The previous prime is 33223431139. The next prime is 33223431167. The reversal of 33223431157 is 75113432233.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 33223431157 - 2¹⁵ = 33223398389 is a prime.

It is a super-2 number, since 2×33223431157² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33223431167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2373102219 + ... + 2373102232.

It is an arithmetic number, because the mean of its divisors is an integer number (9492408904).

Almost surely, 2^33223431157 is an apocalyptic number.

It is an amenable number.

33223431157 is a deficient number, since it is larger than the sum of its proper divisors (4746204459).

33223431157 is an equidigital number, since it uses as much as digits as its factorization.

33223431157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4746204458.

The product of its digits is 45360, while the sum is 34.

The spelling of 33223431157 in words is "thirty-three billion, two hundred twenty-three million, four hundred thirty-one thousand, one hundred fifty-seven".