66006061500505 has 8 divisors (see below), whose sum is σ = 90522598629312. Its totient is φ = 45261299314608.

The previous prime is 66006061500481. The next prime is 66006061500563. The reversal of 66006061500505 is 50500516060066.

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

It is a cyclic number.

It is not a de Polignac number, because 66006061500505 - 2³¹ = 66003914016857 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 942943735687 + ... + 942943735756.

It is an arithmetic number, because the mean of its divisors is an integer number (11315324828664).

Almost surely, 2^{66006061500505} is an apocalyptic number.

It is an amenable number.

66006061500505 is a deficient number, since it is larger than the sum of its proper divisors (24516537128807).

66006061500505 is a wasteful number, since it uses less digits than its factorization.

66006061500505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1885887471455.

The product of its (nonzero) digits is 162000, while the sum is 40.

The spelling of 66006061500505 in words is "sixty-six trillion, six billion, sixty-one million, five hundred thousand, five hundred five".