65503220642 has 8 divisors (see below), whose sum is σ = 104034526956. Its totient is φ = 30825044992.

The previous prime is 65503220623. The next prime is 65503220669. The reversal of 65503220642 is 24602230556.

It can be written as a sum of positive squares in 2 ways, for example, as 65238865561 + 264355081 = 255419^2 + 16259^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 963282623 + ... + 963282690.

Almost surely, 2^65503220642 is an apocalyptic number.

65503220642 is a deficient number, since it is larger than the sum of its proper divisors (38531306314).

65503220642 is a wasteful number, since it uses less digits than its factorization.

65503220642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1926565332.

The product of its (nonzero) digits is 86400, while the sum is 35.

The spelling of 65503220642 in words is "sixty-five billion, five hundred three million, two hundred twenty thousand, six hundred forty-two".