66329061 has 16 divisors (see below), whose sum is σ = 91748160. Its totient is φ = 42573440.

The previous prime is 66329051. The next prime is 66329093. The reversal of 66329061 is 16092366.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66329061 is a prime.

It is a super-3 number, since 3×66329061³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66329051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37681 + ... + 39401.

It is an arithmetic number, because the mean of its divisors is an integer number (5734260).

Almost surely, 2^66329061 is an apocalyptic number.

It is an amenable number.

66329061 is a deficient number, since it is larger than the sum of its proper divisors (25419099).

66329061 is a wasteful number, since it uses less digits than its factorization.

66329061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2196.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 66329061 is about 8144.2655285790. The cubic root of 66329061 is about 404.7945124323.

The spelling of 66329061 in words is "sixty-six million, three hundred twenty-nine thousand, sixty-one".