66116616152 has 16 divisors (see below), whose sum is σ = 124151780160. Its totient is φ = 33009474784.

The previous prime is 66116616143. The next prime is 66116616199. The reversal of 66116616152 is 25161661166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6098408 + ... + 6109239.

It is an arithmetic number, because the mean of its divisors is an integer number (7759486260).

Almost surely, 2^66116616152 is an apocalyptic number.

It is an amenable number.

66116616152 is a deficient number, since it is larger than the sum of its proper divisors (58035164008).

66116616152 is a wasteful number, since it uses less digits than its factorization.

66116616152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12208330 (or 12208326 counting only the distinct ones).

The product of its digits is 77760, while the sum is 41.

The spelling of 66116616152 in words is "sixty-six billion, one hundred sixteen million, six hundred sixteen thousand, one hundred fifty-two".