205325255011431 has 64 divisors (see below), whose sum is σ = 308291281790976. Its totient is φ = 120877792358400.

The previous prime is 205325255011417. The next prime is 205325255011433. The reversal of 205325255011431 is 134110552523502.

It is not a de Polignac number, because 205325255011431 - 2¹⁵ = 205325254978663 is a prime.

It is a super-2 number, since 2×205325255011431² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 205325255011431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205325255011433) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10149411 + ... + 22664091.

It is an arithmetic number, because the mean of its divisors is an integer number (4817051277984).

Almost surely, 2^{205325255011431} is an apocalyptic number.

205325255011431 is a deficient number, since it is larger than the sum of its proper divisors (102966026779545).

205325255011431 is a wasteful number, since it uses less digits than its factorization.

205325255011431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12514992.

The product of its (nonzero) digits is 180000, while the sum is 39.

The spelling of 205325255011431 in words is "two hundred five trillion, three hundred twenty-five billion, two hundred fifty-five million, eleven thousand, four hundred thirty-one".