205313715153453 has 16 divisors (see below), whose sum is σ = 278376483459200. Its totient is φ = 134565590278080.

The previous prime is 205313715153451. The next prime is 205313715153467. The reversal of 205313715153453 is 354351517313502.

It is a happy number.

It is not a de Polignac number, because 205313715153453 - 2¹ = 205313715153451 is a prime.

It is a super-2 number, since 2×205313715153453² (a number of 29 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 (205313715153451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276103033 + ... + 276845646.

It is an arithmetic number, because the mean of its divisors is an integer number (17398530216200).

Almost surely, 2^{205313715153453} is an apocalyptic number.

It is an amenable number.

205313715153453 is a deficient number, since it is larger than the sum of its proper divisors (73062768305747).

205313715153453 is a wasteful number, since it uses less digits than its factorization.

205313715153453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552950772.

The product of its (nonzero) digits is 2835000, while the sum is 48.

The spelling of 205313715153453 in words is "two hundred five trillion, three hundred thirteen billion, seven hundred fifteen million, one hundred fifty-three thousand, four hundred fifty-three".