5646512161 has 8 divisors (see below), whose sum is σ = 5771130624. Its totient is φ = 5523241200.

The previous prime is 5646512117. The next prime is 5646512197. The reversal of 5646512161 is 1612156465.

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 5646512161 - 2²⁵ = 5612957729 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5646512161.

It is not an unprimeable number, because it can be changed into a prime (5646512561) 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, 328401 + ... + 345166.

It is an arithmetic number, because the mean of its divisors is an integer number (721391328).

Almost surely, 2^5646512161 is an apocalyptic number.

It is an amenable number.

5646512161 is a deficient number, since it is larger than the sum of its proper divisors (124618463).

5646512161 is a wasteful number, since it uses less digits than its factorization.

5646512161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673751.

The product of its digits is 43200, while the sum is 37.

The square root of 5646512161 is about 75143.2775502906. The cubic root of 5646512161 is about 1780.7109226261.

The spelling of 5646512161 in words is "five billion, six hundred forty-six million, five hundred twelve thousand, one hundred sixty-one".