66283536 has 80 divisors (see below), whose sum is σ = 190844928. Its totient is φ = 19651200.

The previous prime is 66283499. The next prime is 66283559. The reversal of 66283536 is 63538266.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 66283494 and 66283503.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23481 + ... + 26151.

Almost surely, 2^66283536 is an apocalyptic number.

66283536 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66283536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95422464).

66283536 is an abundant number, since it is smaller than the sum of its proper divisors (124561392).

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

66283536 is a wasteful number, since it uses less digits than its factorization.

66283536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740 (or 2734 counting only the distinct ones).

The product of its digits is 155520, while the sum is 39.

The square root of 66283536 is about 8141.4701375120. The cubic root of 66283536 is about 404.7018808990.

The spelling of 66283536 in words is "sixty-six million, two hundred eighty-three thousand, five hundred thirty-six".