65315242534 has 4 divisors (see below), whose sum is σ = 97972863804. Its totient is φ = 32657621266.

The previous prime is 65315242507. The next prime is 65315242537. The reversal of 65315242534 is 43524251356.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65315242537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16328810632 + ... + 16328810635.

It is an arithmetic number, because the mean of its divisors is an integer number (24493215951).

Almost surely, 2^65315242534 is an apocalyptic number.

65315242534 is a deficient number, since it is larger than the sum of its proper divisors (32657621270).

65315242534 is a wasteful number, since it uses less digits than its factorization.

65315242534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32657621269.

The product of its digits is 432000, while the sum is 40.

The spelling of 65315242534 in words is "sixty-five billion, three hundred fifteen million, two hundred forty-two thousand, five hundred thirty-four".