1606673805 has 64 divisors (see below), whose sum is σ = 2911334400. Its totient is φ = 749477120.

The previous prime is 1606673777. The next prime is 1606673807. The reversal of 1606673805 is 5083766061.

It is not a de Polignac number, because 1606673805 - 2⁵ = 1606673773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606673807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2234236 + ... + 2234954.

It is an arithmetic number, because the mean of its divisors is an integer number (45489600).

Almost surely, 2^1606673805 is an apocalyptic number.

1606673805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1606673805 is a deficient number, since it is larger than the sum of its proper divisors (1304660595).

1606673805 is a wasteful number, since it uses less digits than its factorization.

1606673805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 1606673805 is about 40083.3357519057. The cubic root of 1606673805 is about 1171.2310331728.

The spelling of 1606673805 in words is "one billion, six hundred six million, six hundred seventy-three thousand, eight hundred five".