1655536066673 has 2 divisors, whose sum is σ = 1655536066674. Its totient is φ = 1655536066672.

The previous prime is 1655536066649. The next prime is 1655536066729. The reversal of 1655536066673 is 3766606355561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1247581770304 + 407954296369 = 1116952^2 + 638713^2 .

It is a cyclic number.

It is not a de Polignac number, because 1655536066673 - 2⁸ = 1655536066417 is a prime.

It is not a weakly prime, because it can be changed into another prime (1655536063673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 827768033336 + 827768033337.

It is an arithmetic number, because the mean of its divisors is an integer number (827768033337).

Almost surely, 2^{1655536066673} is an apocalyptic number.

It is an amenable number.

1655536066673 is a deficient number, since it is larger than the sum of its proper divisors (1).

1655536066673 is an equidigital number, since it uses as much as digits as its factorization.

1655536066673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236000, while the sum is 59.

The spelling of 1655536066673 in words is "one trillion, six hundred fifty-five billion, five hundred thirty-six million, sixty-six thousand, six hundred seventy-three".