64216435111 has 4 divisors (see below), whose sum is σ = 64685168352. Its totient is φ = 63747701872.

The previous prime is 64216435109. The next prime is 64216435139. The reversal of 64216435111 is 11153461246.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64216435111 - 2¹ = 64216435109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64216435141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234366415 + ... + 234366688.

It is an arithmetic number, because the mean of its divisors is an integer number (16171292088).

Almost surely, 2^64216435111 is an apocalyptic number.

64216435111 is a deficient number, since it is larger than the sum of its proper divisors (468733241).

64216435111 is a wasteful number, since it uses less digits than its factorization.

64216435111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468733240.

The product of its digits is 17280, while the sum is 34.

Adding to 64216435111 its reverse (11153461246), we get a palindrome (75369896357).

The spelling of 64216435111 in words is "sixty-four billion, two hundred sixteen million, four hundred thirty-five thousand, one hundred eleven".