641073161 has 8 divisors (see below), whose sum is σ = 643416000. Its totient is φ = 638735760.

The previous prime is 641073157. The next prime is 641073193. The reversal of 641073161 is 161370146.

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 641073161 - 2² = 641073157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (641073151) 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, 495926 + ... + 497216.

It is an arithmetic number, because the mean of its divisors is an integer number (80427000).

Almost surely, 2^641073161 is an apocalyptic number.

It is an amenable number.

641073161 is a deficient number, since it is larger than the sum of its proper divisors (2342839).

641073161 is a wasteful number, since it uses less digits than its factorization.

641073161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2719.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 641073161 is about 25319.4226040011. The cubic root of 641073161 is about 862.2552852197.

The spelling of 641073161 in words is "six hundred forty-one million, seventy-three thousand, one hundred sixty-one".