65651551660606 has 8 divisors (see below), whose sum is σ = 98478697368600. Its totient is φ = 32825319204408.

The previous prime is 65651551660577. The next prime is 65651551660609. The reversal of 65651551660606 is 60606615515656.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65651551660609) 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, 228133201 + ... + 228420796.

It is an arithmetic number, because the mean of its divisors is an integer number (12309837171075).

Almost surely, 2^{65651551660606} is an apocalyptic number.

65651551660606 is a deficient number, since it is larger than the sum of its proper divisors (32827145707994).

65651551660606 is a wasteful number, since it uses less digits than its factorization.

65651551660606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456625898.

The product of its (nonzero) digits is 29160000, while the sum is 58.

The spelling of 65651551660606 in words is "sixty-five trillion, six hundred fifty-one billion, five hundred fifty-one million, six hundred sixty thousand, six hundred six".