2100664511 has 4 divisors (see below), whose sum is σ = 2291634024. Its totient is φ = 1909695000.

The previous prime is 2100664481. The next prime is 2100664519. The reversal of 2100664511 is 1154660012.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2100664511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100664519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95484740 + ... + 95484761.

It is an arithmetic number, because the mean of its divisors is an integer number (572908506).

Almost surely, 2^2100664511 is an apocalyptic number.

2100664511 is a deficient number, since it is larger than the sum of its proper divisors (190969513).

2100664511 is a wasteful number, since it uses less digits than its factorization.

2100664511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190969512.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 2100664511 is about 45833.0067855034. The cubic root of 2100664511 is about 1280.7142235907.

The spelling of 2100664511 in words is "two billion, one hundred million, six hundred sixty-four thousand, five hundred eleven".