5546165561 has 8 divisors (see below), whose sum is σ = 5927294880. Its totient is φ = 5171134528.

The previous prime is 5546165551. The next prime is 5546165593. The reversal of 5546165561 is 1655616455.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-5546165561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5546165551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1522691 + ... + 1526328.

It is an arithmetic number, because the mean of its divisors is an integer number (740911860).

Almost surely, 2^5546165561 is an apocalyptic number.

It is an amenable number.

5546165561 is a deficient number, since it is larger than the sum of its proper divisors (381129319).

5546165561 is a wasteful number, since it uses less digits than its factorization.

5546165561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3049143.

The product of its digits is 540000, while the sum is 44.

The square root of 5546165561 is about 74472.5826126636. The cubic root of 5546165561 is about 1770.0992167776.

The spelling of 5546165561 in words is "five billion, five hundred forty-six million, one hundred sixty-five thousand, five hundred sixty-one".