2164950090 has 48 divisors (see below), whose sum is σ = 5632092648. Its totient is φ = 576989568.

The previous prime is 2164950001. The next prime is 2164950121. The reversal of 2164950090 is 900594612.

2164950090 is a `hidden beast` number, since 2 + 1 + 64 + 9 + 500 + 90 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1017163449 + 1147786641 = 31893^2 + 33879^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 178912 + ... + 190628.

Almost surely, 2^2164950090 is an apocalyptic number.

2164950090 is an abundant number, since it is smaller than the sum of its proper divisors (3467142558).

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

2164950090 is a wasteful number, since it uses less digits than its factorization.

2164950090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13783 (or 13780 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 2164950090 is about 46529.0241677171. The cubic root of 2164950090 is about 1293.6475278357.

The spelling of 2164950090 in words is "two billion, one hundred sixty-four million, nine hundred fifty thousand, ninety".