65912571242 has 32 divisors (see below), whose sum is σ = 115677674112. Its totient is φ = 27577718784.

The previous prime is 65912571239. The next prime is 65912571247. The reversal of 65912571242 is 24217521956.

It is a junction number, because it is equal to n+sod(n) for n = 65912571193 and 65912571202.

It is not an unprimeable number, because it can be changed into a prime (65912571247) 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 in 15 ways as a sum of consecutive naturals, for example, 1246118 + ... + 1297934.

It is an arithmetic number, because the mean of its divisors is an integer number (3614927316).

Almost surely, 2^65912571242 is an apocalyptic number.

65912571242 is a deficient number, since it is larger than the sum of its proper divisors (49765102870).

65912571242 is a wasteful number, since it uses less digits than its factorization.

65912571242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53982.

The product of its digits is 302400, while the sum is 44.

The spelling of 65912571242 in words is "sixty-five billion, nine hundred twelve million, five hundred seventy-one thousand, two hundred forty-two".