3650161320 has 224 divisors, whose sum is σ = 13262243400. Its totient is φ = 898407936.

The previous prime is 3650161289. The next prime is 3650161321. The reversal of 3650161320 is 231610563.

3650161320 is a `hidden beast` number, since 3 + 650 + 1 + 6 + 1 + 3 + 2 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3294989604 + 355171716 = 57402^2 + 18846^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (3650161321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 374266 + ... + 383894.

Almost surely, 2^3650161320 is an apocalyptic number.

3650161320 is a gapful number since it is divisible by the number (30) 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 3650161320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6631121700).

3650161320 is an abundant number, since it is smaller than the sum of its proper divisors (9612082080).

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

3650161320 is a wasteful number, since it uses less digits than its factorization.

3650161320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9671 (or 9652 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 3650161320 is about 60416.5649470408. The cubic root of 3650161320 is about 1539.7044072009.

Adding to 3650161320 its reverse (231610563), we get a palindrome (3881771883).

The spelling of 3650161320 in words is "three billion, six hundred fifty million, one hundred sixty-one thousand, three hundred twenty".