66329029 has 8 divisors (see below), whose sum is σ = 71496152. Its totient is φ = 61171200.

The previous prime is 66329027. The next prime is 66329051. The reversal of 66329029 is 92092366.

It can be written as a sum of positive squares in 4 ways, for example, as 280900 + 66048129 = 530^2 + 8127^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 66329029 - 2¹ = 66329027 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66329027) 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, 21997 + ... + 24829.

It is an arithmetic number, because the mean of its divisors is an integer number (8937019).

Almost surely, 2^66329029 is an apocalyptic number.

It is an amenable number.

66329029 is a deficient number, since it is larger than the sum of its proper divisors (5167123).

66329029 is a wasteful number, since it uses less digits than its factorization.

66329029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4647.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 66329029 is about 8144.2635640063. The cubic root of 66329029 is about 404.7944473355.

It can be divided in two parts, 663 and 29029, that added together give a palindrome (29692).

The spelling of 66329029 in words is "sixty-six million, three hundred twenty-nine thousand, twenty-nine".