65147712 has 56 divisors (see below), whose sum is σ = 196998336. Its totient is φ = 18613248.

The previous prime is 65147711. The next prime is 65147737. The reversal of 65147712 is 21774156.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65147711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22893 + ... + 25580.

Almost surely, 2^65147712 is an apocalyptic number.

It is an amenable number.

65147712 is an abundant number, since it is smaller than the sum of its proper divisors (131850624).

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

65147712 is a wasteful number, since it uses less digits than its factorization.

65147712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48495 (or 48485 counting only the distinct ones).

The product of its digits is 11760, while the sum is 33.

The square root of 65147712 is about 8071.4132591511. The cubic root of 65147712 is about 402.3769143848.

The spelling of 65147712 in words is "sixty-five million, one hundred forty-seven thousand, seven hundred twelve".