65995854 has 24 divisors (see below), whose sum is σ = 139308840. Its totient is φ = 20840112.

The previous prime is 65995843. The next prime is 65995877. The reversal of 65995854 is 45859956.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 65995797 and 65995806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13069 + ... + 17400.

It is an arithmetic number, because the mean of its divisors is an integer number (5804535).

Almost surely, 2^65995854 is an apocalyptic number.

65995854 is an abundant number, since it is smaller than the sum of its proper divisors (73312986).

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

65995854 is a wasteful number, since it uses less digits than its factorization.

65995854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30512 (or 30493 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 51.

The square root of 65995854 is about 8123.7832319677. The cubic root of 65995854 is about 404.1155397733.

The spelling of 65995854 in words is "sixty-five million, nine hundred ninety-five thousand, eight hundred fifty-four".