163433528231 has 4 divisors (see below), whose sum is σ = 163445627352. Its totient is φ = 163421429112.

The previous prime is 163433528227. The next prime is 163433528257. The reversal of 163433528231 is 132825334361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 163433528231 - 2² = 163433528227 is a prime.

It is a super-2 number, since 2×163433528231² (a number of 23 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 (163433528131) 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, 6029276 + ... + 6056321.

It is an arithmetic number, because the mean of its divisors is an integer number (40861406838).

Almost surely, 2^163433528231 is an apocalyptic number.

163433528231 is a deficient number, since it is larger than the sum of its proper divisors (12099121).

163433528231 is a wasteful number, since it uses less digits than its factorization.

163433528231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12099120.

The product of its digits is 311040, while the sum is 41.

The spelling of 163433528231 in words is "one hundred sixty-three billion, four hundred thirty-three million, five hundred twenty-eight thousand, two hundred thirty-one".