1330605538225 has 12 divisors (see below), whose sum is σ = 1668489643980. Its totient is φ = 1052523929600.

The previous prime is 1330605538217. The next prime is 1330605538253. The reversal of 1330605538225 is 5228355060331.

It can be written as a sum of positive squares in 6 ways, for example, as 147984087969 + 1182621450256 = 384687^2 + 1087484^2 .

It is not a de Polignac number, because 1330605538225 - 2³ = 1330605538217 is a prime.

It is a super-2 number, since 2×1330605538225² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 299010256 + ... + 299014705.

It is an arithmetic number, because the mean of its divisors is an integer number (139040803665).

Almost surely, 2^{1330605538225} is an apocalyptic number.

It is an amenable number.

1330605538225 is a deficient number, since it is larger than the sum of its proper divisors (337884105755).

1330605538225 is an equidigital number, since it uses as much as digits as its factorization.

1330605538225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598025060 (or 598025055 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 43.

The spelling of 1330605538225 in words is "one trillion, three hundred thirty billion, six hundred five million, five hundred thirty-eight thousand, two hundred twenty-five".