66100011 has 8 divisors (see below), whose sum is σ = 89249280. Its totient is φ = 43508712.

The previous prime is 66100007. The next prime is 66100037. The reversal of 66100011 is 11000166.

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

It is not a de Polignac number, because 66100011 - 2² = 66100007 is a prime.

It is a super-2 number, since 2×66100011² = 8738422908400242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66100051) 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, 139215 + ... + 139688.

It is an arithmetic number, because the mean of its divisors is an integer number (11156160).

Almost surely, 2^66100011 is an apocalyptic number.

66100011 is a deficient number, since it is larger than the sum of its proper divisors (23149269).

66100011 is a wasteful number, since it uses less digits than its factorization.

66100011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278985.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 66100011 is about 8130.1913261620. The cubic root of 66100011 is about 404.3280245266.

Adding to 66100011 its reverse (11000166), we get a palindrome (77100177).

The spelling of 66100011 in words is "sixty-six million, one hundred thousand, eleven".