66227164756 has 24 divisors (see below), whose sum is σ = 116975206656. Its totient is φ = 32806512960.

The previous prime is 66227164709. The next prime is 66227164771. The reversal of 66227164756 is 65746172266.

It is a super-3 number, since 3×66227164756³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213960 + ... + 422176.

It is an arithmetic number, because the mean of its divisors is an integer number (4873966944).

Almost surely, 2^66227164756 is an apocalyptic number.

It is an amenable number.

66227164756 is a deficient number, since it is larger than the sum of its proper divisors (50748041900).

66227164756 is a wasteful number, since it uses less digits than its factorization.

66227164756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208959 (or 208957 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 52.

The spelling of 66227164756 in words is "sixty-six billion, two hundred twenty-seven million, one hundred sixty-four thousand, seven hundred fifty-six".