421732110065 has 16 divisors (see below), whose sum is σ = 597032739840. Its totient is φ = 279859095360.

The previous prime is 421732110011. The next prime is 421732110073. The reversal of 421732110065 is 560011237124.

It is not a de Polignac number, because 421732110065 - 2⁶ = 421732110001 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194345510 + ... + 194347679.

It is an arithmetic number, because the mean of its divisors is an integer number (37314546240).

Almost surely, 2^421732110065 is an apocalyptic number.

It is an amenable number.

421732110065 is a deficient number, since it is larger than the sum of its proper divisors (175300629775).

421732110065 is a wasteful number, since it uses less digits than its factorization.

421732110065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388693232.

The product of its (nonzero) digits is 10080, while the sum is 32.

Adding to 421732110065 its reverse (560011237124), we get a palindrome (981743347189).

The spelling of 421732110065 in words is "four hundred twenty-one billion, seven hundred thirty-two million, one hundred ten thousand, sixty-five".