1999536585 has 16 divisors (see below), whose sum is σ = 3277290240. Its totient is φ = 1040408960.

The previous prime is 1999536569. The next prime is 1999536587. The reversal of 1999536585 is 5856359991.

1999536585 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1999536585 - 2⁴ = 1999536569 is a prime.

1999536585 is a modest number, since divided by 36585 gives 19995 as remainder.

It is not an unprimeable number, because it can be changed into a prime (1999536587) 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, 1625025 + ... + 1626254.

It is an arithmetic number, because the mean of its divisors is an integer number (204830640).

Almost surely, 2^1999536585 is an apocalyptic number.

1999536585 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1999536585 is a deficient number, since it is larger than the sum of its proper divisors (1277753655).

1999536585 is a wasteful number, since it uses less digits than its factorization.

1999536585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3251328.

The product of its digits is 13122000, while the sum is 60.

The square root of 1999536585 is about 44716.1781126250. The cubic root of 1999536585 is about 1259.8237313258.

The spelling of 1999536585 in words is "one billion, nine hundred ninety-nine million, five hundred thirty-six thousand, five hundred eighty-five".