65331712 has 20 divisors (see below), whose sum is σ = 130536846. Its totient is φ = 32665600.

The previous prime is 65331691. The next prime is 65331733. The reversal of 65331712 is 21713356.

It is an interprime number because it is at equal distance from previous prime (65331691) and next prime (65331733).

It can be written as a sum of positive squares in only one way, i.e., 53934336 + 11397376 = 7344^2 + 3376^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63289 + ... + 64312.

Almost surely, 2^65331712 is an apocalyptic number.

It is an amenable number.

65331712 is a deficient number, since it is larger than the sum of its proper divisors (65205134).

65331712 is an equidigital number, since it uses as much as digits as its factorization.

65331712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127619 (or 127603 counting only the distinct ones).

The product of its digits is 3780, while the sum is 28.

The square root of 65331712 is about 8082.8034740429. The cubic root of 65331712 is about 402.7553761739.

The spelling of 65331712 in words is "sixty-five million, three hundred thirty-one thousand, seven hundred twelve".