66930628542 has 8 divisors (see below), whose sum is σ = 133861257096. Its totient is φ = 22310209512.

The previous prime is 66930628537. The next prime is 66930628543. The reversal of 66930628542 is 24582603966.

It is a sphenic number, since it is the product of 3 distinct primes.

66930628542 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66930628543) 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, 5577552373 + ... + 5577552384.

It is an arithmetic number, because the mean of its divisors is an integer number (16732657137).

Almost surely, 2^66930628542 is an apocalyptic number.

66930628542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

66930628542 is a wasteful number, since it uses less digits than its factorization.

66930628542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11155104762.

The product of its (nonzero) digits is 3732480, while the sum is 51.

The spelling of 66930628542 in words is "sixty-six billion, nine hundred thirty million, six hundred twenty-eight thousand, five hundred forty-two".