66507034824 has 40 divisors (see below), whose sum is σ = 186281279910. Its totient is φ = 22169011392.

The previous prime is 66507034777. The next prime is 66507034829. The reversal of 66507034824 is 42843070566.

66507034824 is a `hidden beast` number, since 66 + 507 + 0 + 3 + 4 + 82 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 66486622500 + 20412324 = 257850^2 + 4518^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 66507034824.

It is not an unprimeable number, because it can be changed into a prime (66507034829) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 51316509 + ... + 51317804.

Almost surely, 2^66507034824 is an apocalyptic number.

It is an amenable number.

66507034824 is an abundant number, since it is smaller than the sum of its proper divisors (119774245086).

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

66507034824 is a wasteful number, since it uses less digits than its factorization.

66507034824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102634331 (or 102634318 counting only the distinct ones).

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

The spelling of 66507034824 in words is "sixty-six billion, five hundred seven million, thirty-four thousand, eight hundred twenty-four".