1606836945 has 64 divisors (see below), whose sum is σ = 3051707904. Its totient is φ = 706682880.

The previous prime is 1606836941. The next prime is 1606836949. The reversal of 1606836945 is 5496386061.

It is an interprime number because it is at equal distance from previous prime (1606836941) and next prime (1606836949).

It is not a de Polignac number, because 1606836945 - 2² = 1606836941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1606836894 and 1606836903.

It is not an unprimeable number, because it can be changed into a prime (1606836941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 311709 + ... + 316821.

It is an arithmetic number, because the mean of its divisors is an integer number (47682936).

Almost surely, 2^1606836945 is an apocalyptic number.

1606836945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1606836945 is a deficient number, since it is larger than the sum of its proper divisors (1444870959).

1606836945 is a wasteful number, since it uses less digits than its factorization.

1606836945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5242.

The product of its (nonzero) digits is 933120, while the sum is 48.

The square root of 1606836945 is about 40085.3707105223. The cubic root of 1606836945 is about 1171.2706736946.

The spelling of 1606836945 in words is "one billion, six hundred six million, eight hundred thirty-six thousand, nine hundred forty-five".