45661655161 has 8 divisors (see below), whose sum is σ = 46469140200. Its totient is φ = 44861042688.

The previous prime is 45661655159. The next prime is 45661655173. The reversal of 45661655161 is 16155616654.

It can be written as a sum of positive squares in 4 ways, for example, as 268796025 + 45392859136 = 16395^2 + 213056^2 .

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 45661655161 - 2¹ = 45661655159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45661655861) 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, 1704736 + ... + 1731313.

It is an arithmetic number, because the mean of its divisors is an integer number (5808642525).

Almost surely, 2^45661655161 is an apocalyptic number.

It is an amenable number.

45661655161 is a deficient number, since it is larger than the sum of its proper divisors (807485039).

45661655161 is a wasteful number, since it uses less digits than its factorization.

45661655161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3436283.

The product of its digits is 648000, while the sum is 46.

The spelling of 45661655161 in words is "forty-five billion, six hundred sixty-one million, six hundred fifty-five thousand, one hundred sixty-one".