65680654 has 16 divisors (see below), whose sum is σ = 106505280. Its totient is φ = 30198240.

The previous prime is 65680633. The next prime is 65680691. The reversal of 65680654 is 45608656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2299 + ... + 11689.

It is an arithmetic number, because the mean of its divisors is an integer number (6656580).

Almost surely, 2^65680654 is an apocalyptic number.

65680654 is a deficient number, since it is larger than the sum of its proper divisors (40824626).

65680654 is a wasteful number, since it uses less digits than its factorization.

65680654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9675.

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 65680654 is about 8104.3601844933. The cubic root of 65680654 is about 403.4711531078.

The spelling of 65680654 in words is "sixty-five million, six hundred eighty thousand, six hundred fifty-four".