65610671 has 4 divisors (see below), whose sum is σ = 74983632. Its totient is φ = 56237712.

The previous prime is 65610631. The next prime is 65610683. The reversal of 65610671 is 17601656.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65610671 - 2⁶ = 65610607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65610631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4686470 + ... + 4686483.

It is an arithmetic number, because the mean of its divisors is an integer number (18745908).

Almost surely, 2^65610671 is an apocalyptic number.

65610671 is a deficient number, since it is larger than the sum of its proper divisors (9372961).

65610671 is an equidigital number, since it uses as much as digits as its factorization.

65610671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9372960.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 65610671 is about 8100.0414196472. The cubic root of 65610671 is about 403.3278021386.

The spelling of 65610671 in words is "sixty-five million, six hundred ten thousand, six hundred seventy-one".