65681353 has 16 divisors (see below), whose sum is σ = 73063296. Its totient is φ = 58727680.

The previous prime is 65681333. The next prime is 65681359. The reversal of 65681353 is 35318656.

It is a cyclic number.

It is not a de Polignac number, because 65681353 - 2¹³ = 65673161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65681359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67158 + ... + 68128.

It is an arithmetic number, because the mean of its divisors is an integer number (4566456).

Almost surely, 2^65681353 is an apocalyptic number.

It is an amenable number.

65681353 is a deficient number, since it is larger than the sum of its proper divisors (7381943).

65681353 is a wasteful number, since it uses less digits than its factorization.

65681353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184.

The product of its digits is 64800, while the sum is 37.

The square root of 65681353 is about 8104.4033093128. The cubic root of 65681353 is about 403.4725844036.

It can be divided in two parts, 6568 and 1353, that added together give a square (7921 = 89²).

The spelling of 65681353 in words is "sixty-five million, six hundred eighty-one thousand, three hundred fifty-three".