4050617661 has 12 divisors (see below), whose sum is σ = 6009024892. Its totient is φ = 2627427456.

The previous prime is 4050617633. The next prime is 4050617677. The reversal of 4050617661 is 1667160504.

It can be written as a sum of positive squares in 2 ways, for example, as 3845240100 + 205377561 = 62010^2 + 14331^2 .

It is not a de Polignac number, because 4050617661 - 2¹³ = 4050609469 is a prime.

It is a super-2 number, since 2×4050617661² = 32815006871210221842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4050617621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6081676 + ... + 6082341.

Almost surely, 2^4050617661 is an apocalyptic number.

It is an amenable number.

4050617661 is a deficient number, since it is larger than the sum of its proper divisors (1958407231).

4050617661 is a wasteful number, since it uses less digits than its factorization.

4050617661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12164060 (or 12164057 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 4050617661 is about 63644.4629249081. The cubic root of 4050617661 is about 1594.0688820937.

The spelling of 4050617661 in words is "four billion, fifty million, six hundred seventeen thousand, six hundred sixty-one".