66261108 has 24 divisors (see below), whose sum is σ = 158206048. Its totient is φ = 21573216.

The previous prime is 66261103. The next prime is 66261109. The reversal of 66261108 is 80116266.

66261108 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66261101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63691 + ... + 64722.

Almost surely, 2^66261108 is an apocalyptic number.

It is an amenable number.

66261108 is an abundant number, since it is smaller than the sum of its proper divisors (91944940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66261108 is a wasteful number, since it uses less digits than its factorization.

66261108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128463 (or 128461 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 66261108 is about 8140.0926284656. The cubic root of 66261108 is about 404.6562301574.

The spelling of 66261108 in words is "sixty-six million, two hundred sixty-one thousand, one hundred eight".