1605557760463 has 2 divisors, whose sum is σ = 1605557760464. Its totient is φ = 1605557760462.

The previous prime is 1605557760439. The next prime is 1605557760479. The reversal of 1605557760463 is 3640677555061.

It is a strong prime.

It is an emirp because it is prime and its reverse (3640677555061) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1605557760463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1605557760263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802778880231 + 802778880232.

It is an arithmetic number, because the mean of its divisors is an integer number (802778880232).

Almost surely, 2^{1605557760463} is an apocalyptic number.

1605557760463 is a deficient number, since it is larger than the sum of its proper divisors (1).

1605557760463 is an equidigital number, since it uses as much as digits as its factorization.

1605557760463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876000, while the sum is 55.

The spelling of 1605557760463 in words is "one trillion, six hundred five billion, five hundred fifty-seven million, seven hundred sixty thousand, four hundred sixty-three".