66061248 has 112 divisors (see below), whose sum is σ = 197022720. Its totient is φ = 19353600.

The previous prime is 66061223. The next prime is 66061253. The reversal of 66061248 is 84216066.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a zygodrome in base 2 and base 4.

It is a congruent number.

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, 64968 + ... + 65976.

Almost surely, 2^66061248 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 66061248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98511360).

66061248 is an abundant number, since it is smaller than the sum of its proper divisors (130961472).

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

66061248 is a wasteful number, since it uses less digits than its factorization.

66061248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066 (or 1056 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 66061248 is about 8127.8070843248. The cubic root of 66061248 is about 404.2489724373.

The spelling of 66061248 in words is "sixty-six million, sixty-one thousand, two hundred forty-eight".