1606675601 has 2 divisors, whose sum is σ = 1606675602. Its totient is φ = 1606675600.

The previous prime is 1606675573. The next prime is 1606675613. The reversal of 1606675601 is 1065766061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1023936001 + 582739600 = 31999^2 + 24140^2 .

It is a cyclic number.

It is not a de Polignac number, because 1606675601 - 2¹⁰ = 1606674577 is a prime.

It is a super-2 number, since 2×1606675601² = 5162812973697422402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1606675801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803337800 + 803337801.

It is an arithmetic number, because the mean of its divisors is an integer number (803337801).

Almost surely, 2^1606675601 is an apocalyptic number.

It is an amenable number.

1606675601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1606675601 is an equidigital number, since it uses as much as digits as its factorization.

1606675601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 1606675601 is about 40083.3581552245. The cubic root of 1606675601 is about 1171.2314695879.

The spelling of 1606675601 in words is "one billion, six hundred six million, six hundred seventy-five thousand, six hundred one".