65406043382 has 4 divisors (see below), whose sum is σ = 98109065076. Its totient is φ = 32703021690.

The previous prime is 65406043361. The next prime is 65406043387. The reversal of 65406043382 is 28334060456.

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 (65406043387) 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, 16351510844 + ... + 16351510847.

It is an arithmetic number, because the mean of its divisors is an integer number (24527266269).

Almost surely, 2^65406043382 is an apocalyptic number.

65406043382 is a deficient number, since it is larger than the sum of its proper divisors (32703021694).

65406043382 is a wasteful number, since it uses less digits than its factorization.

65406043382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32703021693.

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 65406043382 in words is "sixty-five billion, four hundred six million, forty-three thousand, three hundred eighty-two".