64465665111 has 6 divisors (see below), whose sum is σ = 93117071840. Its totient is φ = 42977110068.

The previous prime is 64465665109. The next prime is 64465665113. The reversal of 64465665111 is 11156656446.

It is an interprime number because it is at equal distance from previous prime (64465665109) and next prime (64465665113).

It is not a de Polignac number, because 64465665111 - 2¹ = 64465665109 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 (64465665113) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3581425831 + ... + 3581425848.

Almost surely, 2^64465665111 is an apocalyptic number.

64465665111 is a deficient number, since it is larger than the sum of its proper divisors (28651406729).

64465665111 is a wasteful number, since it uses less digits than its factorization.

64465665111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7162851685 (or 7162851682 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The spelling of 64465665111 in words is "sixty-four billion, four hundred sixty-five million, six hundred sixty-five thousand, one hundred eleven".