66016560111 has 8 divisors (see below), whose sum is σ = 88059434544. Its totient is φ = 43992362880.

The previous prime is 66016560109. The next prime is 66016560119. The reversal of 66016560111 is 11106561066.

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

It is not a de Polignac number, because 66016560111 - 2¹ = 66016560109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66016560119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4661050 + ... + 4675191.

It is an arithmetic number, because the mean of its divisors is an integer number (11007429318).

Almost surely, 2^66016560111 is an apocalyptic number.

66016560111 is a deficient number, since it is larger than the sum of its proper divisors (22042874433).

66016560111 is a wasteful number, since it uses less digits than its factorization.

66016560111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9338601.

The product of its (nonzero) digits is 6480, while the sum is 33.

The spelling of 66016560111 in words is "sixty-six billion, sixteen million, five hundred sixty thousand, one hundred eleven".