1606400175773 has 2 divisors, whose sum is σ = 1606400175774. Its totient is φ = 1606400175772.

The previous prime is 1606400175697. The next prime is 1606400175799. The reversal of 1606400175773 is 3775710046061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1133686174009 + 472714001764 = 1064747^2 + 687542^2 .

It is a cyclic number.

It is not a de Polignac number, because 1606400175773 - 2⁸ = 1606400175517 is a prime.

It is a super-2 number, since 2×1606400175773² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1606400195773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803200087886 + 803200087887.

It is an arithmetic number, because the mean of its divisors is an integer number (803200087887).

Almost surely, 2^{1606400175773} is an apocalyptic number.

It is an amenable number.

1606400175773 is a deficient number, since it is larger than the sum of its proper divisors (1).

1606400175773 is an equidigital number, since it uses as much as digits as its factorization.

1606400175773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 740880, while the sum is 47.

The spelling of 1606400175773 in words is "one trillion, six hundred six billion, four hundred million, one hundred seventy-five thousand, seven hundred seventy-three".