6461688164943 has 8 divisors (see below), whose sum is σ = 9398819149056. Its totient is φ = 3916174645400.

The previous prime is 6461688164929. The next prime is 6461688165011. The reversal of 6461688164943 is 3494618861646.

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 6461688164943 - 2⁶ = 6461688164879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6461688160943) 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, 97904366103 + ... + 97904366168.

It is an arithmetic number, because the mean of its divisors is an integer number (1174852393632).

Almost surely, 2^{6461688164943} is an apocalyptic number.

6461688164943 is a deficient number, since it is larger than the sum of its proper divisors (2937130984113).

6461688164943 is a wasteful number, since it uses less digits than its factorization.

6461688164943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195808732285.

The product of its digits is 143327232, while the sum is 66.

The spelling of 6461688164943 in words is "six trillion, four hundred sixty-one billion, six hundred eighty-eight million, one hundred sixty-four thousand, nine hundred forty-three".