205344412653 has 8 divisors (see below), whose sum is σ = 275948397568. Its totient is φ = 135818351424.

The previous prime is 205344412627. The next prime is 205344412661. The reversal of 205344412653 is 356214443502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 205344412653 - 2³² = 201049445357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205344417653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269480476 + ... + 269481237.

It is an arithmetic number, because the mean of its divisors is an integer number (34493549696).

Almost surely, 2^205344412653 is an apocalyptic number.

It is an amenable number.

205344412653 is a deficient number, since it is larger than the sum of its proper divisors (70603984915).

205344412653 is a wasteful number, since it uses less digits than its factorization.

205344412653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538961843.

The product of its (nonzero) digits is 345600, while the sum is 39.

The spelling of 205344412653 in words is "two hundred five billion, three hundred forty-four million, four hundred twelve thousand, six hundred fifty-three".