65695905 has 96 divisors (see below), whose sum is σ = 135727488. Its totient is φ = 29030400.

The previous prime is 65695897. The next prime is 65695909. The reversal of 65695905 is 50959656.

65695905 is a `hidden beast` number, since 6 + 56 + 9 + 590 + 5 = 666.

65695905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65695905 - 2³ = 65695897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65695909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 311250 + ... + 311460.

It is an arithmetic number, because the mean of its divisors is an integer number (1413828).

Almost surely, 2^65695905 is an apocalyptic number.

It is an amenable number.

65695905 is an abundant number, since it is smaller than the sum of its proper divisors (70031583).

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

65695905 is a wasteful number, since it uses less digits than its factorization.

65695905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287 (or 284 counting only the distinct ones).

The product of its (nonzero) digits is 364500, while the sum is 45.

The square root of 65695905 is about 8105.3010431445. The cubic root of 65695905 is about 403.5023792603.

The spelling of 65695905 in words is "sixty-five million, six hundred ninety-five thousand, nine hundred five".