1383662066273 has 16 divisors (see below), whose sum is σ = 1421117472720. Its totient is φ = 1346716108800.

The previous prime is 1383662066249. The next prime is 1383662066291. The reversal of 1383662066273 is 3726602663831.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 119168563264 + 1264493503009 = 345208^2 + 1124497^2 .

It is a cyclic number.

It is not a de Polignac number, because 1383662066273 - 2¹² = 1383662062177 is a prime.

It is a super-2 number, since 2×1383662066273² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1383662066243) 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, 4923161 + ... + 5196617.

It is an arithmetic number, because the mean of its divisors is an integer number (88819842045).

Almost surely, 2^{1383662066273} is an apocalyptic number.

It is an amenable number.

1383662066273 is a deficient number, since it is larger than the sum of its proper divisors (37455406447).

1383662066273 is a wasteful number, since it uses less digits than its factorization.

1383662066273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274388.

The product of its (nonzero) digits is 7838208, while the sum is 53.

The spelling of 1383662066273 in words is "one trillion, three hundred eighty-three billion, six hundred sixty-two million, sixty-six thousand, two hundred seventy-three".