1606901667 has 16 divisors (see below), whose sum is σ = 2451432192. Its totient is φ = 917172000.

The previous prime is 1606901657. The next prime is 1606901671. The reversal of 1606901667 is 7661096061.

It is not a de Polignac number, because 1606901667 - 2⁶ = 1606901603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1606901627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25209 + ... + 62042.

It is an arithmetic number, because the mean of its divisors is an integer number (153214512).

Almost surely, 2^1606901667 is an apocalyptic number.

1606901667 is a deficient number, since it is larger than the sum of its proper divisors (844530525).

1606901667 is an equidigital number, since it uses as much as digits as its factorization.

1606901667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88138.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 1606901667 is about 40086.1780043945. The cubic root of 1606901667 is about 1171.2863994061.

The spelling of 1606901667 in words is "one billion, six hundred six million, nine hundred one thousand, six hundred sixty-seven".