1606360057961 has 2 divisors, whose sum is σ = 1606360057962. Its totient is φ = 1606360057960.

The previous prime is 1606360057877. The next prime is 1606360058021. The reversal of 1606360057961 is 1697500636061.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1432854486361 + 173505571600 = 1197019^2 + 416540^2 .

It is an emirp because it is prime and its reverse (1697500636061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1606360057961 - 2³⁸ = 1331482151017 is a prime.

It is not a weakly prime, because it can be changed into another prime (1606360057061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803180028980 + 803180028981.

It is an arithmetic number, because the mean of its divisors is an integer number (803180028981).

Almost surely, 2^{1606360057961} is an apocalyptic number.

It is an amenable number.

1606360057961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1606360057961 is an equidigital number, since it uses as much as digits as its factorization.

1606360057961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1224720, while the sum is 50.

The spelling of 1606360057961 in words is "one trillion, six hundred six billion, three hundred sixty million, fifty-seven thousand, nine hundred sixty-one".