66885011 has 8 divisors (see below), whose sum is σ = 70909824. Its totient is φ = 62976960.

The previous prime is 66885001. The next prime is 66885017. The reversal of 66885011 is 11058866.

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

It is a de Polignac number, because none of the positive numbers 2^k-66885011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66885017) 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, 28010 + ... + 30303.

It is an arithmetic number, because the mean of its divisors is an integer number (8863728).

Almost surely, 2^66885011 is an apocalyptic number.

66885011 is a deficient number, since it is larger than the sum of its proper divisors (4024813).

66885011 is a wasteful number, since it uses less digits than its factorization.

66885011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58381.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 66885011 is about 8178.3256843929. The cubic root of 66885011 is about 405.9223220883.

The spelling of 66885011 in words is "sixty-six million, eight hundred eighty-five thousand, eleven".