1650608361 has 28 divisors (see below), whose sum is σ = 2554647040. Its totient is φ = 1064894040.

The previous prime is 1650608287. The next prime is 1650608371. The reversal of 1650608361 is 1638060561.

It is a happy number.

1650608361 is a `hidden beast` number, since 16 + 5 + 0 + 608 + 36 + 1 = 666.

It is not a de Polignac number, because 1650608361 - 2¹⁵ = 1650575593 is a prime.

It is a super-2 number, since 2×1650608361² = 5449015922806212642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1650608371) 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 27 ways as a sum of consecutive naturals, for example, 13921 + ... + 59118.

Almost surely, 2^1650608361 is an apocalyptic number.

It is an amenable number.

1650608361 is a deficient number, since it is larger than the sum of its proper divisors (904038679).

1650608361 is an frugal number, since it uses more digits than its factorization.

1650608361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73088 (or 73073 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 1650608361 is about 40627.6797393107. The cubic root of 1650608361 is about 1181.8109607755.

The spelling of 1650608361 in words is "one billion, six hundred fifty million, six hundred eight thousand, three hundred sixty-one".