64188257954161 has 8 divisors (see below), whose sum is σ = 70026639549984. Its totient is φ = 58350390594720.

The previous prime is 64188257954159. The next prime is 64188257954189. The reversal of 64188257954161 is 16145975288146.

64188257954161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 64188257954161 - 2¹ = 64188257954159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64188257954141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128298075 + ... + 128797408.

It is an arithmetic number, because the mean of its divisors is an integer number (8753329943748).

Almost surely, 2^{64188257954161} is an apocalyptic number.

It is an amenable number.

64188257954161 is a deficient number, since it is larger than the sum of its proper divisors (5838381595823).

64188257954161 is a wasteful number, since it uses less digits than its factorization.

64188257954161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257118191.

The product of its digits is 116121600, while the sum is 67.

The spelling of 64188257954161 in words is "sixty-four trillion, one hundred eighty-eight billion, two hundred fifty-seven million, nine hundred fifty-four thousand, one hundred sixty-one".