1604166006727 has 2 divisors, whose sum is σ = 1604166006728. Its totient is φ = 1604166006726.

The previous prime is 1604166006719. The next prime is 1604166006731. The reversal of 1604166006727 is 7276006614061.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1604166006727 - 2³ = 1604166006719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1604166006767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802083003363 + 802083003364.

It is an arithmetic number, because the mean of its divisors is an integer number (802083003364).

Almost surely, 2^{1604166006727} is an apocalyptic number.

1604166006727 is a deficient number, since it is larger than the sum of its proper divisors (1).

1604166006727 is an equidigital number, since it uses as much as digits as its factorization.

1604166006727 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 1604166006727 in words is "one trillion, six hundred four billion, one hundred sixty-six million, six thousand, seven hundred twenty-seven".