2001011465 has 8 divisors (see below), whose sum is σ = 2414629440. Its totient is φ = 1591865392.

The previous prime is 2001011447. The next prime is 2001011479. The reversal of 2001011465 is 5641101002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2001011465 - 2¹² = 2001007369 is a prime.

It is a super-2 number, since 2×2001011465² = 8008093766122892450, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1116989 + ... + 1118778.

It is an arithmetic number, because the mean of its divisors is an integer number (301828680).

Almost surely, 2^2001011465 is an apocalyptic number.

It is an amenable number.

2001011465 is a deficient number, since it is larger than the sum of its proper divisors (413617975).

2001011465 is a wasteful number, since it uses less digits than its factorization.

2001011465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235951.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 2001011465 is about 44732.6666430697. Note that the first 4 decimals coincide. The cubic root of 2001011465 is about 1260.1334084408.

Adding to 2001011465 its reverse (5641101002), we get a palindrome (7642112467).

The spelling of 2001011465 in words is "two billion, one million, eleven thousand, four hundred sixty-five".