1605667552063 has 2 divisors, whose sum is σ = 1605667552064. Its totient is φ = 1605667552062.

The previous prime is 1605667552001. The next prime is 1605667552121. The reversal of 1605667552063 is 3602557665061.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1605667552063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1605667552063.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1605667559063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802833776031 + 802833776032.

It is an arithmetic number, because the mean of its divisors is an integer number (802833776032).

Almost surely, 2^{1605667552063} is an apocalyptic number.

1605667552063 is a deficient number, since it is larger than the sum of its proper divisors (1).

1605667552063 is an equidigital number, since it uses as much as digits as its factorization.

1605667552063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804000, while the sum is 52.

The spelling of 1605667552063 in words is "one trillion, six hundred five billion, six hundred sixty-seven million, five hundred fifty-two thousand, sixty-three".