6441767161 has 8 divisors (see below), whose sum is σ = 6474994848. Its totient is φ = 6408600000.

The previous prime is 6441767153. The next prime is 6441767179. The reversal of 6441767161 is 1617671446.

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 6441767161 - 2³ = 6441767153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6441767131) 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, 206566 + ... + 235696.

It is an arithmetic number, because the mean of its divisors is an integer number (809374356).

Almost surely, 2^6441767161 is an apocalyptic number.

It is an amenable number.

6441767161 is a deficient number, since it is larger than the sum of its proper divisors (33227687).

6441767161 is a wasteful number, since it uses less digits than its factorization.

6441767161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30263.

The product of its digits is 169344, while the sum is 43.

The square root of 6441767161 is about 80260.6202380719. The cubic root of 6441767161 is about 1860.6656538554.

The spelling of 6441767161 in words is "six billion, four hundred forty-one million, seven hundred sixty-seven thousand, one hundred sixty-one".