66436107 has 8 divisors (see below), whose sum is σ = 89112576. Its totient is φ = 44025192.

The previous prime is 66436091. The next prime is 66436147. The reversal of 66436107 is 70163466.

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

It is not a de Polignac number, because 66436107 - 2⁴ = 66436091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66436147) 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, 65803 + ... + 66804.

It is an arithmetic number, because the mean of its divisors is an integer number (11139072).

Almost surely, 2^66436107 is an apocalyptic number.

66436107 is a deficient number, since it is larger than the sum of its proper divisors (22676469).

66436107 is a wasteful number, since it uses less digits than its factorization.

66436107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132777.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 66436107 is about 8150.8347425279. The cubic root of 66436107 is about 405.0121563185.

The spelling of 66436107 in words is "sixty-six million, four hundred thirty-six thousand, one hundred seven".