66000536 has 48 divisors (see below), whose sum is σ = 144789840. Its totient is φ = 27622080.

The previous prime is 66000523. The next prime is 66000553. The reversal of 66000536 is 63500066.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 474755 + ... + 474893.

It is an arithmetic number, because the mean of its divisors is an integer number (3016455).

Almost surely, 2^66000536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66000536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72394920).

66000536 is an abundant number, since it is smaller than the sum of its proper divisors (78789304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66000536 is a wasteful number, since it uses less digits than its factorization.

66000536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352 (or 209 counting only the distinct ones).

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

The square root of 66000536 is about 8124.0713930886. The cubic root of 66000536 is about 404.1250960515.

The spelling of 66000536 in words is "sixty-six million, five hundred thirty-six", and thus it is an aban number.