66355116 has 24 divisors (see below), whose sum is σ = 155620080. Its totient is φ = 22005312.

The previous prime is 66355057. The next prime is 66355123. The reversal of 66355116 is 61155366.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11671 + ... + 16398.

It is an arithmetic number, because the mean of its divisors is an integer number (6484170).

Almost surely, 2^66355116 is an apocalyptic number.

It is an amenable number.

66355116 is an abundant number, since it is smaller than the sum of its proper divisors (89264964).

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

66355116 is a wasteful number, since it uses less digits than its factorization.

66355116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28273 (or 28271 counting only the distinct ones).

The product of its digits is 16200, while the sum is 33.

The square root of 66355116 is about 8145.8649632804. The cubic root of 66355116 is about 404.8475085106.

The spelling of 66355116 in words is "sixty-six million, three hundred fifty-five thousand, one hundred sixteen".