66310896 has 40 divisors (see below), whose sum is σ = 172917504. Its totient is φ = 21895360.

The previous prime is 66310861. The next prime is 66310901. The reversal of 66310896 is 69801366.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1320 + ... + 11591.

Almost surely, 2^66310896 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 66310896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86458752).

66310896 is an abundant number, since it is smaller than the sum of its proper divisors (106606608).

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

66310896 is a wasteful number, since it uses less digits than its factorization.

66310896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13029 (or 13023 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 66310896 is about 8143.1502503638. The cubic root of 66310896 is about 404.7575564658.

The spelling of 66310896 in words is "sixty-six million, three hundred ten thousand, eight hundred ninety-six".