2001115005 has 16 divisors (see below), whose sum is σ = 3269908224. Its totient is φ = 1044553280.

The previous prime is 2001114989. The next prime is 2001115013. The reversal of 2001115005 is 5005111002.

It is not a de Polignac number, because 2001115005 - 2⁴ = 2001114989 is a prime.

It is a super-2 number, since 2×2001115005² = 8008922526472300050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1418526 + ... + 1419935.

It is an arithmetic number, because the mean of its divisors is an integer number (204369264).

Almost surely, 2^2001115005 is an apocalyptic number.

It is an amenable number.

2001115005 is a deficient number, since it is larger than the sum of its proper divisors (1268793219).

2001115005 is a wasteful number, since it uses less digits than its factorization.

2001115005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2838516.

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 2001115005 is about 44733.8239478809. The cubic root of 2001115005 is about 1260.1551427762.

Adding to 2001115005 its reverse (5005111002), we get a palindrome (7006226007).

The spelling of 2001115005 in words is "two billion, one million, one hundred fifteen thousand, five".