65855730 has 16 divisors (see below), whose sum is σ = 158053824. Its totient is φ = 17561520.

The previous prime is 65855719. The next prime is 65855753. The reversal of 65855730 is 3755856.

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, 1097566 + ... + 1097625.

It is an arithmetic number, because the mean of its divisors is an integer number (9878364).

Almost surely, 2^65855730 is an apocalyptic number.

65855730 is an abundant number, since it is smaller than the sum of its proper divisors (92198094).

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

65855730 is a wasteful number, since it uses less digits than its factorization.

65855730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2195201.

The product of its (nonzero) digits is 126000, while the sum is 39.

The square root of 65855730 is about 8115.1543423400. The cubic root of 65855730 is about 403.8293278041.

The spelling of 65855730 in words is "sixty-five million, eight hundred fifty-five thousand, seven hundred thirty".