3661177121 has 8 divisors (see below), whose sum is σ = 4297289280. Its totient is φ = 3053336688.

The previous prime is 3661177109. The next prime is 3661177139. The reversal of 3661177121 is 1217711663.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3661177121 - 2³⁰ = 2587435297 is a prime.

It is a super-2 number, since 2×3661177121² = 26808435822667697282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3661177141) 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 7 ways as a sum of consecutive naturals, for example, 7067651 + ... + 7068168.

It is an arithmetic number, because the mean of its divisors is an integer number (537161160).

Almost surely, 2^3661177121 is an apocalyptic number.

It is an amenable number.

3661177121 is a deficient number, since it is larger than the sum of its proper divisors (636112159).

3661177121 is a wasteful number, since it uses less digits than its factorization.

3661177121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14135863.

The product of its digits is 10584, while the sum is 35.

The square root of 3661177121 is about 60507.6616718908. The cubic root of 3661177121 is about 1541.2517400597.

Adding to 3661177121 its reverse (1217711663), we get a palindrome (4878888784).

The spelling of 3661177121 in words is "three billion, six hundred sixty-one million, one hundred seventy-seven thousand, one hundred twenty-one".