2164434650 has 24 divisors (see below), whose sum is σ = 4600970400. Its totient is φ = 742091760.

The previous prime is 2164434637. The next prime is 2164434661. The reversal of 2164434650 is 564344612.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 2164434650.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3091700 + ... + 3092399.

It is an arithmetic number, because the mean of its divisors is an integer number (191707100).

Almost surely, 2^2164434650 is an apocalyptic number.

2164434650 is an abundant number, since it is smaller than the sum of its proper divisors (2436535750).

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

2164434650 is a wasteful number, since it uses less digits than its factorization.

2164434650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6184118 (or 6184113 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 2164434650 is about 46523.4849296568. The cubic root of 2164434650 is about 1293.5448540897.

The spelling of 2164434650 in words is "two billion, one hundred sixty-four million, four hundred thirty-four thousand, six hundred fifty".