65312543654 has 4 divisors (see below), whose sum is σ = 97968815484. Its totient is φ = 32656271826.

The previous prime is 65312543641. The next prime is 65312543687. The reversal of 65312543654 is 45634521356.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16328135912 + ... + 16328135915.

It is an arithmetic number, because the mean of its divisors is an integer number (24492203871).

Almost surely, 2^65312543654 is an apocalyptic number.

65312543654 is a deficient number, since it is larger than the sum of its proper divisors (32656271830).

65312543654 is a wasteful number, since it uses less digits than its factorization.

65312543654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32656271829.

The product of its digits is 1296000, while the sum is 44.

The spelling of 65312543654 in words is "sixty-five billion, three hundred twelve million, five hundred forty-three thousand, six hundred fifty-four".