66042834507 has 36 divisors (see below), whose sum is σ = 103551303960. Its totient is φ = 40541993856.

The previous prime is 66042834497. The next prime is 66042834511. The reversal of 66042834507 is 70543824066.

66042834507 is a `hidden beast` number, since 6 + 60 + 4 + 2 + 83 + 4 + 507 = 666.

It is not a de Polignac number, because 66042834507 - 2⁶ = 66042834443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66042838507) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 569008 + ... + 675170.

It is an arithmetic number, because the mean of its divisors is an integer number (2876425110).

Almost surely, 2^66042834507 is an apocalyptic number.

66042834507 is a deficient number, since it is larger than the sum of its proper divisors (37508469453).

66042834507 is a wasteful number, since it uses less digits than its factorization.

66042834507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106604 (or 106588 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 66042834507 in words is "sixty-six billion, forty-two million, eight hundred thirty-four thousand, five hundred seven".