65231621222705 has 8 divisors (see below), whose sum is σ = 89460509105472. Its totient is φ = 44730254552688.

The previous prime is 65231621222701. The next prime is 65231621222749. The reversal of 65231621222705 is 50722212613256.

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

It is a cyclic number.

It is not a de Polignac number, because 65231621222705 - 2² = 65231621222701 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65231621222701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 931880303147 + ... + 931880303216.

It is an arithmetic number, because the mean of its divisors is an integer number (11182563638184).

Almost surely, 2^{65231621222705} is an apocalyptic number.

It is an amenable number.

65231621222705 is a deficient number, since it is larger than the sum of its proper divisors (24228887882767).

65231621222705 is a wasteful number, since it uses less digits than its factorization.

65231621222705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1863760606375.

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 65231621222705 in words is "sixty-five trillion, two hundred thirty-one billion, six hundred twenty-one million, two hundred twenty-two thousand, seven hundred five".