2164505516 has 12 divisors (see below), whose sum is σ = 3835833120. Its totient is φ = 1068553200.

The previous prime is 2164505477. The next prime is 2164505521. The reversal of 2164505516 is 6155054612.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3424535 + ... + 3425166.

It is an arithmetic number, because the mean of its divisors is an integer number (319652760).

Almost surely, 2^2164505516 is an apocalyptic number.

It is an amenable number.

2164505516 is a deficient number, since it is larger than the sum of its proper divisors (1671327604).

2164505516 is a wasteful number, since it uses less digits than its factorization.

2164505516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6849784 (or 6849782 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 2164505516 is about 46524.2465387673. The cubic root of 2164505516 is about 1293.5589713018.

The spelling of 2164505516 in words is "two billion, one hundred sixty-four million, five hundred five thousand, five hundred sixteen".