64195144118 has 12 divisors (see below), whose sum is σ = 112013976132. Its totient is φ = 27512204580.

The previous prime is 64195144087. The next prime is 64195144159. The reversal of 64195144118 is 81144159146.

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 in 5 ways as a sum of consecutive naturals, for example, 327526148 + ... + 327526343.

It is an arithmetic number, because the mean of its divisors is an integer number (9334498011).

Almost surely, 2^64195144118 is an apocalyptic number.

64195144118 is a deficient number, since it is larger than the sum of its proper divisors (47818832014).

64195144118 is a wasteful number, since it uses less digits than its factorization.

64195144118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655052507 (or 655052500 counting only the distinct ones).

The product of its digits is 138240, while the sum is 44.

The spelling of 64195144118 in words is "sixty-four billion, one hundred ninety-five million, one hundred forty-four thousand, one hundred eighteen".