64665413241 has 64 divisors (see below), whose sum is σ = 104430041856. Its totient is φ = 35067801600.

The previous prime is 64665413221. The next prime is 64665413251. The reversal of 64665413241 is 14231456646.

It is not a de Polignac number, because 64665413241 - 2⁵ = 64665413209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64665413193 and 64665413202.

It is not an unprimeable number, because it can be changed into a prime (64665413221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2749765 + ... + 2773181.

It is an arithmetic number, because the mean of its divisors is an integer number (1631719404).

Almost surely, 2^64665413241 is an apocalyptic number.

It is an amenable number.

64665413241 is a deficient number, since it is larger than the sum of its proper divisors (39764628615).

64665413241 is a wasteful number, since it uses less digits than its factorization.

64665413241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23642.

The product of its digits is 414720, while the sum is 42.

Adding to 64665413241 its reverse (14231456646), we get a palindrome (78896869887).

The spelling of 64665413241 in words is "sixty-four billion, six hundred sixty-five million, four hundred thirteen thousand, two hundred forty-one".