66102533 has 8 divisors (see below), whose sum is σ = 75596352. Its totient is φ = 56621376.

The previous prime is 66102523. The next prime is 66102541. The reversal of 66102533 is 33520166.

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

It is not a de Polignac number, because 66102533 - 2¹⁰ = 66101509 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66102503) 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, 14966 + ... + 18872.

It is an arithmetic number, because the mean of its divisors is an integer number (9449544).

Almost surely, 2^66102533 is an apocalyptic number.

It is an amenable number.

66102533 is a deficient number, since it is larger than the sum of its proper divisors (9493819).

66102533 is a wasteful number, since it uses less digits than its factorization.

66102533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6331.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 66102533 is about 8130.3464255836. The cubic root of 66102533 is about 404.3331667462. Note that the first 3 decimals are identical.

Adding to 66102533 its reverse (33520166), we get a palindrome (99622699).

The spelling of 66102533 in words is "sixty-six million, one hundred two thousand, five hundred thirty-three".