1650164000 has 96 divisors (see below), whose sum is σ = 4097214576. Its totient is φ = 653107200.

The previous prime is 1650163997. The next prime is 1650164011. The reversal of 1650164000 is 4610561.

It can be written as a sum of positive squares in 8 ways, for example, as 9265936 + 1640898064 = 3044^2 + 40508^2 .

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 385874 + ... + 390126.

Almost surely, 2^1650164000 is an apocalyptic number.

1650164000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1650164000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2048607288).

1650164000 is an abundant number, since it is smaller than the sum of its proper divisors (2447050576).

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

1650164000 is an equidigital number, since it uses as much as digits as its factorization.

1650164000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4375 (or 4357 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1650164000 is about 40622.2106734727. The cubic root of 1650164000 is about 1181.7048993085.

Adding to 1650164000 its reverse (4610561), we get a palindrome (1654774561).

The spelling of 1650164000 in words is "one billion, six hundred fifty million, one hundred sixty-four thousand".