65504642146 has 4 divisors (see below), whose sum is σ = 98256963222. Its totient is φ = 32752321072.

The previous prime is 65504642143. The next prime is 65504642201. The reversal of 65504642146 is 64124640556.

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

It can be written as a sum of positive squares in only one way, i.e., 59406750225 + 6097891921 = 243735^2 + 78089^2 .

It is not an unprimeable number, because it can be changed into a prime (65504642143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16376160535 + ... + 16376160538.

Almost surely, 2^65504642146 is an apocalyptic number.

65504642146 is a deficient number, since it is larger than the sum of its proper divisors (32752321076).

65504642146 is a wasteful number, since it uses less digits than its factorization.

65504642146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32752321075.

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 65504642146 in words is "sixty-five billion, five hundred four million, six hundred forty-two thousand, one hundred forty-six".