66211676 has 6 divisors (see below), whose sum is σ = 115870440. Its totient is φ = 33105836.

The previous prime is 66211643. The next prime is 66211697. The reversal of 66211676 is 67611266.

66211676 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

66211676 is strictly pandigital in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8276456 + ... + 8276463.

It is an arithmetic number, because the mean of its divisors is an integer number (19311740).

Almost surely, 2^66211676 is an apocalyptic number.

It is an amenable number.

66211676 is a deficient number, since it is larger than the sum of its proper divisors (49658764).

66211676 is a wasteful number, since it uses less digits than its factorization.

66211676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16552923 (or 16552921 counting only the distinct ones).

The product of its digits is 18144, while the sum is 35.

The square root of 66211676 is about 8137.0557328803. The cubic root of 66211676 is about 404.5555781378. Note that the first 4 decimals are identical.

The spelling of 66211676 in words is "sixty-six million, two hundred eleven thousand, six hundred seventy-six".