66110655056 has 40 divisors (see below), whose sum is σ = 132724314624. Its totient is φ = 31867332480.

The previous prime is 66110655031. The next prime is 66110655089. The reversal of 66110655056 is 65055601166.

It is a super-3 number, since 3×66110655056³ (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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122951 + ... + 383846.

Almost surely, 2^66110655056 is an apocalyptic number.

It is an amenable number.

66110655056 is an abundant number, since it is smaller than the sum of its proper divisors (66613659568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66110655056 is a wasteful number, since it uses less digits than its factorization.

66110655056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507099 (or 507093 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 66110655056 in words is "sixty-six billion, one hundred ten million, six hundred fifty-five thousand, fifty-six".