66250704 has 60 divisors (see below), whose sum is σ = 185348256. Its totient is φ = 20382336.

The previous prime is 66250699. The next prime is 66250721. The reversal of 66250704 is 40705266.

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, 4029 + ... + 12195.

Almost surely, 2^66250704 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 66250704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92674128).

66250704 is an abundant number, since it is smaller than the sum of its proper divisors (119097552).

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

66250704 is a wasteful number, since it uses less digits than its factorization.

66250704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8204 (or 8185 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 66250704 is about 8139.4535443112. The cubic root of 66250704 is about 404.6350499915.

The spelling of 66250704 in words is "sixty-six million, two hundred fifty thousand, seven hundred four".