65623285376 has 64 divisors (see below), whose sum is σ = 146097423360. Its totient is φ = 29101209600.

The previous prime is 65623285349. The next prime is 65623285457. The reversal of 65623285376 is 67358232656.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×65623285376² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 510656 + ... + 626111.

It is an arithmetic number, because the mean of its divisors is an integer number (2282772240).

Almost surely, 2^65623285376 is an apocalyptic number.

It is an amenable number.

65623285376 is an abundant number, since it is smaller than the sum of its proper divisors (80474137984).

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

65623285376 is a wasteful number, since it uses less digits than its factorization.

65623285376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136833 (or 1136821 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 53.

The spelling of 65623285376 in words is "sixty-five billion, six hundred twenty-three million, two hundred eighty-five thousand, three hundred seventy-six".