64545163198 has 4 divisors (see below), whose sum is σ = 96817744800. Its totient is φ = 32272581598.

The previous prime is 64545163187. The next prime is 64545163223. The reversal of 64545163198 is 89136154546.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16136290798 + ... + 16136290801.

It is an arithmetic number, because the mean of its divisors is an integer number (24204436200).

Almost surely, 2^64545163198 is an apocalyptic number.

64545163198 is a deficient number, since it is larger than the sum of its proper divisors (32272581602).

64545163198 is a wasteful number, since it uses less digits than its factorization.

64545163198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32272581601.

The product of its digits is 3110400, while the sum is 52.

The spelling of 64545163198 in words is "sixty-four billion, five hundred forty-five million, one hundred sixty-three thousand, one hundred ninety-eight".