1385163630845 has 4 divisors (see below), whose sum is σ = 1662196357020. Its totient is φ = 1108130904672.

The previous prime is 1385163630821. The next prime is 1385163630899. The reversal of 1385163630845 is 5480363615831.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 163108553689 + 1222055077156 = 403867^2 + 1105466^2 .

It is a cyclic number.

It is not a de Polignac number, because 1385163630845 - 2¹⁰ = 1385163629821 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138516363080 + ... + 138516363089.

It is an arithmetic number, because the mean of its divisors is an integer number (415549089255).

Almost surely, 2^{1385163630845} is an apocalyptic number.

It is an amenable number.

1385163630845 is a deficient number, since it is larger than the sum of its proper divisors (277032726175).

1385163630845 is an equidigital number, since it uses as much as digits as its factorization.

1385163630845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277032726174.

The product of its (nonzero) digits is 6220800, while the sum is 53.

The spelling of 1385163630845 in words is "one trillion, three hundred eighty-five billion, one hundred sixty-three million, six hundred thirty thousand, eight hundred forty-five".