66134636101 has 4 divisors (see below), whose sum is σ = 66158855104. Its totient is φ = 66110417100.

The previous prime is 66134636083. The next prime is 66134636153. The reversal of 66134636101 is 10163643166.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 66134636101 - 2²³ = 66126247493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66134636401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12105405 + ... + 12110866.

It is an arithmetic number, because the mean of its divisors is an integer number (16539713776).

Almost surely, 2^66134636101 is an apocalyptic number.

It is an amenable number.

66134636101 is a deficient number, since it is larger than the sum of its proper divisors (24219003).

66134636101 is a wasteful number, since it uses less digits than its factorization.

66134636101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24219002.

The product of its (nonzero) digits is 46656, while the sum is 37.

The spelling of 66134636101 in words is "sixty-six billion, one hundred thirty-four million, six hundred thirty-six thousand, one hundred one".