1606262440613 has 2 divisors, whose sum is σ = 1606262440614. Its totient is φ = 1606262440612.

The previous prime is 1606262440543. The next prime is 1606262440663. The reversal of 1606262440613 is 3160442626061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1360213703524 + 246048737089 = 1166282^2 + 496033^2 .

It is a cyclic number.

It is not a de Polignac number, because 1606262440613 - 2²⁰ = 1606261392037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1606262440663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803131220306 + 803131220307.

It is an arithmetic number, because the mean of its divisors is an integer number (803131220307).

Almost surely, 2^{1606262440613} is an apocalyptic number.

It is an amenable number.

1606262440613 is a deficient number, since it is larger than the sum of its proper divisors (1).

1606262440613 is an equidigital number, since it uses as much as digits as its factorization.

1606262440613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 41.

The spelling of 1606262440613 in words is "one trillion, six hundred six billion, two hundred sixty-two million, four hundred forty thousand, six hundred thirteen".