66532246505 has 16 divisors (see below), whose sum is σ = 81269524800. Its totient is φ = 52273636800.

The previous prime is 66532246499. The next prime is 66532246597. The reversal of 66532246505 is 50564223566.

It is a de Polignac number, because none of the positive numbers 2^k-66532246505 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202751 + ... + 417339.

It is an arithmetic number, because the mean of its divisors is an integer number (5079345300).

Almost surely, 2^66532246505 is an apocalyptic number.

It is an amenable number.

66532246505 is a deficient number, since it is larger than the sum of its proper divisors (14737278295).

66532246505 is a wasteful number, since it uses less digits than its factorization.

66532246505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215704.

The product of its (nonzero) digits is 1296000, while the sum is 44.

The spelling of 66532246505 in words is "sixty-six billion, five hundred thirty-two million, two hundred forty-six thousand, five hundred five".