2150663868 has 18 divisors (see below), whose sum is σ = 5436400424. Its totient is φ = 716887944.

The previous prime is 2150663821. The next prime is 2150663869. The reversal of 2150663868 is 8683660512.

2150663868 is a `hidden beast` number, since 2 + 1 + 5 + 0 + 6 + 638 + 6 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2150663869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29870296 + ... + 29870367.

Almost surely, 2^2150663868 is an apocalyptic number.

It is an amenable number.

2150663868 is an abundant number, since it is smaller than the sum of its proper divisors (3285736556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2150663868 is a wasteful number, since it uses less digits than its factorization.

2150663868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59740673 (or 59740668 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 2150663868 is about 46375.2505977057. The cubic root of 2150663868 is about 1290.7957088308.

The spelling of 2150663868 in words is "two billion, one hundred fifty million, six hundred sixty-three thousand, eight hundred sixty-eight".