65652136144 has 40 divisors (see below), whose sum is σ = 145386016128. Its totient is φ = 28134030720.

The previous prime is 65652136079. The next prime is 65652136217. The reversal of 65652136144 is 44163125656.

It is a super-2 number, since 2×65652136144² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65652136144.

It is a congruent number.

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, 1655589 + ... + 1694779.

Almost surely, 2^65652136144 is an apocalyptic number.

It is an amenable number.

65652136144 is an abundant number, since it is smaller than the sum of its proper divisors (79733879984).

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

65652136144 is a wasteful number, since it uses less digits than its factorization.

65652136144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54163 (or 54157 counting only the distinct ones).

The product of its digits is 518400, while the sum is 43.

The spelling of 65652136144 in words is "sixty-five billion, six hundred fifty-two million, one hundred thirty-six thousand, one hundred forty-four".