1605730201215 has 32 divisors (see below), whose sum is σ = 2936345203200. Its totient is φ = 734009883264.

The previous prime is 1605730201183. The next prime is 1605730201247. The reversal of 1605730201215 is 5121020375061.

It is an interprime number because it is at equal distance from previous prime (1605730201183) and next prime (1605730201247).

It is not a de Polignac number, because 1605730201215 - 2⁵ = 1605730201183 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1680237 + ... + 2456553.

It is an arithmetic number, because the mean of its divisors is an integer number (91760787600).

Almost surely, 2^{1605730201215} is an apocalyptic number.

1605730201215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1605730201215 is a deficient number, since it is larger than the sum of its proper divisors (1330615001985).

1605730201215 is a wasteful number, since it uses less digits than its factorization.

1605730201215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796031.

The product of its (nonzero) digits is 12600, while the sum is 33.

Adding to 1605730201215 its reverse (5121020375061), we get a palindrome (6726750576276).

The spelling of 1605730201215 in words is "one trillion, six hundred five billion, seven hundred thirty million, two hundred one thousand, two hundred fifteen".