65345920 has 32 divisors (see below), whose sum is σ = 156219120. Its totient is φ = 26138112.

The previous prime is 65345899. The next prime is 65345941. The reversal of 65345920 is 2954356.

It is an interprime number because it is at equal distance from previous prime (65345899) and next prime (65345941).

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50412 + ... + 51691.

Almost surely, 2^65345920 is an apocalyptic number.

It is an amenable number.

65345920 is an abundant number, since it is smaller than the sum of its proper divisors (90873200).

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

65345920 is a wasteful number, since it uses less digits than its factorization.

65345920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102122 (or 102110 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 65345920 is about 8083.6823292359. The cubic root of 65345920 is about 402.7845704373.

The spelling of 65345920 in words is "sixty-five million, three hundred forty-five thousand, nine hundred twenty".