1306305332161 has 16 divisors (see below), whose sum is σ = 1434909939840. Its totient is φ = 1183690886400.

The previous prime is 1306305332131. The next prime is 1306305332273. The reversal of 1306305332161 is 1612335036031.

It is a cyclic number.

It is not a de Polignac number, because 1306305332161 - 2²¹ = 1306303235009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1306305332131) 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, 11612361 + ... + 11724313.

It is an arithmetic number, because the mean of its divisors is an integer number (89681871240).

Almost surely, 2^{1306305332161} is an apocalyptic number.

It is an amenable number.

1306305332161 is a deficient number, since it is larger than the sum of its proper divisors (128604607679).

1306305332161 is a wasteful number, since it uses less digits than its factorization.

1306305332161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138696.

The product of its (nonzero) digits is 29160, while the sum is 34.

The spelling of 1306305332161 in words is "one trillion, three hundred six billion, three hundred five million, three hundred thirty-two thousand, one hundred sixty-one".