66429101 has 4 divisors (see below), whose sum is σ = 66577500. Its totient is φ = 66280704.

The previous prime is 66429089. The next prime is 66429119. The reversal of 66429101 is 10192466.

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

It can be written as a sum of positive squares in 2 ways, for example, as 53655625 + 12773476 = 7325^2 + 3574^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66429101 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 (66429151) 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, 73526 + ... + 74423.

It is an arithmetic number, because the mean of its divisors is an integer number (16644375).

Almost surely, 2^66429101 is an apocalyptic number.

It is an amenable number.

66429101 is a deficient number, since it is larger than the sum of its proper divisors (148399).

66429101 is a wasteful number, since it uses less digits than its factorization.

66429101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148398.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 66429101 is about 8150.4049592643. The cubic root of 66429101 is about 404.9979190057.

The spelling of 66429101 in words is "sixty-six million, four hundred twenty-nine thousand, one hundred one".