2164425700 has 18 divisors (see below), whose sum is σ = 4696803986. Its totient is φ = 865770240.

The previous prime is 2164425677. The next prime is 2164425727. The reversal of 2164425700 is 75244612.

It can be written as a sum of positive squares in 3 ways, for example, as 12208036 + 2152217664 = 3494^2 + 46392^2 .

It is a super-2 number, since 2×2164425700² = 9369477221640980000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10822029 + ... + 10822228.

Almost surely, 2^2164425700 is an apocalyptic number.

2164425700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2164425700 is an abundant number, since it is smaller than the sum of its proper divisors (2532378286).

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

2164425700 is a wasteful number, since it uses less digits than its factorization.

2164425700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21644271 (or 21644264 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 2164425700 is about 46523.3887415781. The cubic root of 2164425700 is about 1293.5430711388.

The spelling of 2164425700 in words is "two billion, one hundred sixty-four million, four hundred twenty-five thousand, seven hundred".