2001163018 has 4 divisors (see below), whose sum is σ = 3001744530. Its totient is φ = 1000581508.

The previous prime is 2001162979. The next prime is 2001163027. The reversal of 2001163018 is 8103611002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1022912289 + 978250729 = 31983^2 + 31277^2 .

It is a super-2 number, since 2×2001163018² = 8009306849221736648, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2001163018.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500290753 + ... + 500290756.

Almost surely, 2^2001163018 is an apocalyptic number.

2001163018 is a deficient number, since it is larger than the sum of its proper divisors (1000581512).

2001163018 is a wasteful number, since it uses less digits than its factorization.

2001163018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000581511.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 2001163018 is about 44734.3605967493. The cubic root of 2001163018 is about 1260.1652210483.

The spelling of 2001163018 in words is "two billion, one million, one hundred sixty-three thousand, eighteen".