65212266165 has 16 divisors (see below), whose sum is σ = 109831185600. Its totient is φ = 32949355392.

The previous prime is 65212266131. The next prime is 65212266179. The reversal of 65212266165 is 56166221256.

It is a happy number.

It is not a de Polignac number, because 65212266165 - 2¹² = 65212262069 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114407200 + ... + 114407769.

It is an arithmetic number, because the mean of its divisors is an integer number (6864449100).

Almost surely, 2^65212266165 is an apocalyptic number.

It is an amenable number.

65212266165 is a deficient number, since it is larger than the sum of its proper divisors (44618919435).

65212266165 is a wasteful number, since it uses less digits than its factorization.

65212266165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228814996.

The product of its digits is 259200, while the sum is 42.

The spelling of 65212266165 in words is "sixty-five billion, two hundred twelve million, two hundred sixty-six thousand, one hundred sixty-five".