66246336 has 140 divisors (see below), whose sum is σ = 211695792. Its totient is φ = 20362752.

The previous prime is 66246329. The next prime is 66246347. The reversal of 66246336 is 63364266.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 66246336.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 66901 + ... + 67883.

Almost surely, 2^66246336 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 66246336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105847896).

66246336 is an abundant number, since it is smaller than the sum of its proper divisors (145449456).

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

66246336 is a wasteful number, since it uses less digits than its factorization.

66246336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020 (or 1001 counting only the distinct ones).

The product of its digits is 93312, while the sum is 36.

The square root of 66246336 is about 8139.1852172069. The cubic root of 66246336 is about 404.6261570810.

The spelling of 66246336 in words is "sixty-six million, two hundred forty-six thousand, three hundred thirty-six".