5671655121 has 16 divisors (see below), whose sum is σ = 8258819328. Its totient is φ = 3433558800.

The previous prime is 5671655081. The next prime is 5671655131. The reversal of 5671655121 is 1215561765.

It is a happy number.

It is not a de Polignac number, because 5671655121 - 2⁶ = 5671655057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5671655121.

It is not an unprimeable number, because it can be changed into a prime (5671655131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64815 + ... + 124676.

It is an arithmetic number, because the mean of its divisors is an integer number (516176208).

Almost surely, 2^5671655121 is an apocalyptic number.

It is an amenable number.

5671655121 is a deficient number, since it is larger than the sum of its proper divisors (2587164207).

5671655121 is a wasteful number, since it uses less digits than its factorization.

5671655121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190412.

The product of its digits is 63000, while the sum is 39.

The square root of 5671655121 is about 75310.3918526520. The cubic root of 5671655121 is about 1783.3500770625.

The spelling of 5671655121 in words is "five billion, six hundred seventy-one million, six hundred fifty-five thousand, one hundred twenty-one".