66129634352 has 10 divisors (see below), whose sum is σ = 128126166588. Its totient is φ = 33064817168.

The previous prime is 66129634321. The next prime is 66129634379. The reversal of 66129634352 is 25343692166.

It is a junction number, because it is equal to n+sod(n) for n = 66129634297 and 66129634306.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2066551058 + ... + 2066551089.

Almost surely, 2^66129634352 is an apocalyptic number.

It is an amenable number.

66129634352 is a deficient number, since it is larger than the sum of its proper divisors (61996532236).

66129634352 is a wasteful number, since it uses less digits than its factorization.

66129634352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4133102155 (or 4133102149 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 47.

The spelling of 66129634352 in words is "sixty-six billion, one hundred twenty-nine million, six hundred thirty-four thousand, three hundred fifty-two".