1599561966 has 16 divisors (see below), whose sum is σ = 3207481344. Its totient is φ = 531794424.

The previous prime is 1599561941. The next prime is 1599561967. The reversal of 1599561966 is 6691659951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1599561967) 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 7 ways as a sum of consecutive naturals, for example, 345736 + ... + 350331.

It is an arithmetic number, because the mean of its divisors is an integer number (200467584).

Almost surely, 2^1599561966 is an apocalyptic number.

1599561966 is an abundant number, since it is smaller than the sum of its proper divisors (1607919378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1599561966 is a wasteful number, since it uses less digits than its factorization.

1599561966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696455.

The product of its digits is 3936600, while the sum is 57.

The square root of 1599561966 is about 39994.5242001952. The cubic root of 1599561966 is about 1169.5003506112.

The spelling of 1599561966 in words is "one billion, five hundred ninety-nine million, five hundred sixty-one thousand, nine hundred sixty-six".