65117037976 has 8 divisors (see below), whose sum is σ = 122094446220. Its totient is φ = 32558518984.

The previous prime is 65117037959. The next prime is 65117037989. The reversal of 65117037976 is 67973071156.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×65117037976³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4069814866 + ... + 4069814881.

Almost surely, 2^65117037976 is an apocalyptic number.

It is an amenable number.

65117037976 is a deficient number, since it is larger than the sum of its proper divisors (56977408244).

65117037976 is a wasteful number, since it uses less digits than its factorization.

65117037976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8139629753 (or 8139629749 counting only the distinct ones).

The product of its (nonzero) digits is 1666980, while the sum is 52.

The spelling of 65117037976 in words is "sixty-five billion, one hundred seventeen million, thirty-seven thousand, nine hundred seventy-six".