66361715334 has 12 divisors (see below), whose sum is σ = 143783716596. Its totient is φ = 22120571772.

The previous prime is 66361715311. The next prime is 66361715417. The reversal of 66361715334 is 43351716366.

66361715334 is a `hidden beast` number, since 6 + 636 + 1 + 7 + 1 + 5 + 3 + 3 + 4 = 666.

It is a super-3 number, since 3×66361715334³ (a number of 33 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66361715334.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1843380964 + ... + 1843380999.

It is an arithmetic number, because the mean of its divisors is an integer number (11981976383).

Almost surely, 2^66361715334 is an apocalyptic number.

66361715334 is an abundant number, since it is smaller than the sum of its proper divisors (77422001262).

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

66361715334 is a wasteful number, since it uses less digits than its factorization.

66361715334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3686761971 (or 3686761968 counting only the distinct ones).

The product of its digits is 816480, while the sum is 45.

The spelling of 66361715334 in words is "sixty-six billion, three hundred sixty-one million, seven hundred fifteen thousand, three hundred thirty-four".