1306321500164 has 12 divisors (see below), whose sum is σ = 2341820250588. Its totient is φ = 637230000000.

The previous prime is 1306321500163. The next prime is 1306321500191. The reversal of 1306321500164 is 4610051236031.

It can be written as a sum of positive squares in 2 ways, for example, as 80411944900 + 1225909555264 = 283570^2 + 1107208^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1306321500164.

It is not an unprimeable number, because it can be changed into a prime (1306321500163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3982687337 + ... + 3982687664.

It is an arithmetic number, because the mean of its divisors is an integer number (195151687549).

Almost surely, 2^{1306321500164} is an apocalyptic number.

It is an amenable number.

1306321500164 is a deficient number, since it is larger than the sum of its proper divisors (1035498750424).

1306321500164 is a wasteful number, since it uses less digits than its factorization.

1306321500164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7965375046 (or 7965375044 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

Adding to 1306321500164 its reverse (4610051236031), we get a palindrome (5916372736195).

The spelling of 1306321500164 in words is "one trillion, three hundred six billion, three hundred twenty-one million, five hundred thousand, one hundred sixty-four".