2164550450 has 24 divisors (see below), whose sum is σ = 4035666180. Its totient is φ = 863755200.

The previous prime is 2164550429. The next prime is 2164550461. The reversal of 2164550450 is 540554612.

It can be written as a sum of positive squares in 6 ways, for example, as 25210441 + 2139340009 = 5021^2 + 46253^2 .

It is a Curzon number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 30365 + ... + 72464.

Almost surely, 2^2164550450 is an apocalyptic number.

2164550450 is a deficient number, since it is larger than the sum of its proper divisors (1871115730).

2164550450 is a wasteful number, since it uses less digits than its factorization.

2164550450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103262 (or 103257 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 2164550450 is about 46524.7294457475. The cubic root of 2164550450 is about 1293.5679224420.

The spelling of 2164550450 in words is "two billion, one hundred sixty-four million, five hundred fifty thousand, four hundred fifty".