345530511521053 has 16 divisors (see below), whose sum is σ = 354096328849200. Its totient is φ = 336971301189120.

The previous prime is 345530511521011. The next prime is 345530511521071. The reversal of 345530511521053 is 350125115035543.

It can be written as a sum of positive squares in 8 ways, for example, as 76546173370489 + 268984338150564 = 8749067^2 + 16400742^2 .

It is a cyclic number.

It is not a de Polignac number, because 345530511521053 - 2¹⁷ = 345530511389981 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 (345530511521003) 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, 1199160763 + ... + 1199448871.

It is an arithmetic number, because the mean of its divisors is an integer number (22131020553075).

Almost surely, 2^{345530511521053} is an apocalyptic number.

It is an amenable number.

345530511521053 is a deficient number, since it is larger than the sum of its proper divisors (8565817328147).

345530511521053 is a wasteful number, since it uses less digits than its factorization.

345530511521053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299472.

The product of its (nonzero) digits is 675000, while the sum is 43.

Adding to 345530511521053 its reverse (350125115035543), we get a palindrome (695655626556596).

The spelling of 345530511521053 in words is "three hundred forty-five trillion, five hundred thirty billion, five hundred eleven million, five hundred twenty-one thousand, fifty-three".