66332151 has 6 divisors (see below), whose sum is σ = 95813120. Its totient is φ = 44221428.

The previous prime is 66332141. The next prime is 66332159. The reversal of 66332151 is 15123366.

66332151 is a `hidden beast` number, since 6 + 633 + 21 + 5 + 1 = 666.

It is not a de Polignac number, because 66332151 - 2¹⁵ = 66299383 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 (66332159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3685111 + ... + 3685128.

Almost surely, 2^66332151 is an apocalyptic number.

66332151 is a deficient number, since it is larger than the sum of its proper divisors (29480969).

66332151 is a wasteful number, since it uses less digits than its factorization.

66332151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7370245 (or 7370242 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 66332151 is about 8144.4552304006. The cubic root of 66332151 is about 404.8007982423.

The spelling of 66332151 in words is "sixty-six million, three hundred thirty-two thousand, one hundred fifty-one".