646015110123241 has 16 divisors (see below), whose sum is σ = 653230155640320. Its totient is φ = 638816604004800.

The previous prime is 646015110123233. The next prime is 646015110123289. The reversal of 646015110123241 is 142321011510646.

It is a cyclic number.

It is not a de Polignac number, because 646015110123241 - 2³ = 646015110123233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 646015110123241.

It is not an unprimeable number, because it can be changed into a prime (646015110120241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266445100 + ... + 268858738.

It is an arithmetic number, because the mean of its divisors is an integer number (40826884727520).

Almost surely, 2^{646015110123241} is an apocalyptic number.

It is an amenable number.

646015110123241 is a deficient number, since it is larger than the sum of its proper divisors (7215045517079).

646015110123241 is a wasteful number, since it uses less digits than its factorization.

646015110123241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2417064.

The product of its (nonzero) digits is 34560, while the sum is 37.

Adding to 646015110123241 its reverse (142321011510646), we get a palindrome (788336121633887).

The spelling of 646015110123241 in words is "six hundred forty-six trillion, fifteen billion, one hundred ten million, one hundred twenty-three thousand, two hundred forty-one".