64955445194 has 8 divisors (see below), whose sum is σ = 97436170308. Its totient is φ = 32476721760.

The previous prime is 64955445167. The next prime is 64955445199. The reversal of 64955445194 is 49154455946.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 53563084969 + 11392360225 = 231437^2 + 106735^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (64955445199) 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 3 ways as a sum of consecutive naturals, for example, 416477 + ... + 550784.

Almost surely, 2^64955445194 is an apocalyptic number.

64955445194 is a deficient number, since it is larger than the sum of its proper divisors (32480725114).

64955445194 is a wasteful number, since it uses less digits than its factorization.

64955445194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000840.

The product of its digits is 15552000, while the sum is 56.

The spelling of 64955445194 in words is "sixty-four billion, nine hundred fifty-five million, four hundred forty-five thousand, one hundred ninety-four".