204266522431 has 4 divisors (see below), whose sum is σ = 204503216832. Its totient is φ = 204029828032.

The previous prime is 204266522417. The next prime is 204266522459. The reversal of 204266522431 is 134225662402.

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 204266522431 - 2⁹ = 204266521919 is a prime.

It is a super-2 number, since 2×204266522431² (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 (204266552431) 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, 118345906 + ... + 118347631.

It is an arithmetic number, because the mean of its divisors is an integer number (51125804208).

Almost surely, 2^204266522431 is an apocalyptic number.

204266522431 is a deficient number, since it is larger than the sum of its proper divisors (236694401).

204266522431 is an equidigital number, since it uses as much as digits as its factorization.

204266522431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236694400.

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 204266522431 in words is "two hundred four billion, two hundred sixty-six million, five hundred twenty-two thousand, four hundred thirty-one".