66201748835 has 32 divisors (see below), whose sum is σ = 84575232000. Its totient is φ = 49658071680.

The previous prime is 66201748829. The next prime is 66201748889. The reversal of 66201748835 is 53884710266.

It is not a de Polignac number, because 66201748835 - 2⁴ = 66201748819 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1346516 + ... + 1394814.

It is an arithmetic number, because the mean of its divisors is an integer number (2642976000).

Almost surely, 2^66201748835 is an apocalyptic number.

66201748835 is a deficient number, since it is larger than the sum of its proper divisors (18373483165).

66201748835 is a wasteful number, since it uses less digits than its factorization.

66201748835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48611.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 66201748835 in words is "sixty-six billion, two hundred one million, seven hundred forty-eight thousand, eight hundred thirty-five".