66042104468 has 12 divisors (see below), whose sum is σ = 115621046772. Its totient is φ = 33007519680.

The previous prime is 66042104467. The next prime is 66042104497. The reversal of 66042104468 is 86440124066.

It can be written as a sum of positive squares in 2 ways, for example, as 27615127684 + 38426976784 = 166178^2 + 196028^2 .

It is a super-3 number, since 3×66042104468³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66042104467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3372155 + ... + 3391682.

It is an arithmetic number, because the mean of its divisors is an integer number (9635087231).

Almost surely, 2^66042104468 is an apocalyptic number.

It is an amenable number.

66042104468 is a deficient number, since it is larger than the sum of its proper divisors (49578942304).

66042104468 is a wasteful number, since it uses less digits than its factorization.

66042104468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6766282 (or 6766280 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 41.

The spelling of 66042104468 in words is "sixty-six billion, forty-two million, one hundred four thousand, four hundred sixty-eight".