66625435434 has 8 divisors (see below), whose sum is σ = 133250870880. Its totient is φ = 22208478476.

The previous prime is 66625435351. The next prime is 66625435441. The reversal of 66625435434 is 43453452666.

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

66625435434 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5552119614 + ... + 5552119625.

It is an arithmetic number, because the mean of its divisors is an integer number (16656358860).

Almost surely, 2^66625435434 is an apocalyptic number.

66625435434 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.

66625435434 is a wasteful number, since it uses less digits than its factorization.

66625435434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11104239244.

The product of its digits is 6220800, while the sum is 48.

The spelling of 66625435434 in words is "sixty-six billion, six hundred twenty-five million, four hundred thirty-five thousand, four hundred thirty-four".