66136106 has 4 divisors (see below), whose sum is σ = 99204162. Its totient is φ = 33068052.

The previous prime is 66136099. The next prime is 66136111. The reversal of 66136106 is 60163166.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 53949025 + 12187081 = 7345^2 + 3491^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16534025 + ... + 16534028.

Almost surely, 2^66136106 is an apocalyptic number.

66136106 is a deficient number, since it is larger than the sum of its proper divisors (33068056).

66136106 is a wasteful number, since it uses less digits than its factorization.

66136106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33068055.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 66136106 is about 8132.4108356624. The cubic root of 66136106 is about 404.4016077941.

The spelling of 66136106 in words is "sixty-six million, one hundred thirty-six thousand, one hundred six".