65602164444 has 48 divisors (see below), whose sum is σ = 154081363968. Its totient is φ = 21723312448.

The previous prime is 65602164403. The next prime is 65602164457. The reversal of 65602164444 is 44446120656.

It is a junction number, because it is equal to n+sod(n) for n = 65602164396 and 65602164405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3644314 + ... + 3662270.

It is an arithmetic number, because the mean of its divisors is an integer number (3210028416).

Almost surely, 2^65602164444 is an apocalyptic number.

It is an amenable number.

65602164444 is an abundant number, since it is smaller than the sum of its proper divisors (88479199524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65602164444 is a wasteful number, since it uses less digits than its factorization.

65602164444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19954 (or 19952 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 42.

The spelling of 65602164444 in words is "sixty-five billion, six hundred two million, one hundred sixty-four thousand, four hundred forty-four".