66332529 has 24 divisors (see below), whose sum is σ = 103214592. Its totient is φ = 40930560.

The previous prime is 66332507. The next prime is 66332533. The reversal of 66332529 is 92523366.

It is not a de Polignac number, because 66332529 - 2¹² = 66328433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66332493 and 66332502.

It is not an unprimeable number, because it can be changed into a prime (66332549) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1249 + ... + 11585.

It is an arithmetic number, because the mean of its divisors is an integer number (4300608).

Almost surely, 2^66332529 is an apocalyptic number.

66332529 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

66332529 is a deficient number, since it is larger than the sum of its proper divisors (36882063).

66332529 is a wasteful number, since it uses less digits than its factorization.

66332529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10397 (or 10394 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The square root of 66332529 is about 8144.4784363396. The cubic root of 66332529 is about 404.8015671726.

The spelling of 66332529 in words is "sixty-six million, three hundred thirty-two thousand, five hundred twenty-nine".