65656216376 has 32 divisors (see below), whose sum is σ = 126991105680. Its totient is φ = 31807987200.

The previous prime is 65656216343. The next prime is 65656216397. The reversal of 65656216376 is 67361265656.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 971345 + ... + 1036736.

Almost surely, 2^65656216376 is an apocalyptic number.

It is an amenable number.

65656216376 is a deficient number, since it is larger than the sum of its proper divisors (61334889304).

65656216376 is a wasteful number, since it uses less digits than its factorization.

65656216376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2008215 (or 2008211 counting only the distinct ones).

The product of its digits is 8164800, while the sum is 53.

The spelling of 65656216376 in words is "sixty-five billion, six hundred fifty-six million, two hundred sixteen thousand, three hundred seventy-six".