66276056 has 48 divisors (see below), whose sum is σ = 156120720. Its totient is φ = 25819200.

The previous prime is 66276037. The next prime is 66276059. The reversal of 66276056 is 65067266.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66276059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1886 + ... + 11666.

It is an arithmetic number, because the mean of its divisors is an integer number (3252515).

Almost surely, 2^66276056 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 66276056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78060360).

66276056 is an abundant number, since it is smaller than the sum of its proper divisors (89844664).

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

66276056 is a wasteful number, since it uses less digits than its factorization.

66276056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9816 (or 9801 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 66276056 is about 8141.0107480583. The cubic root of 66276056 is about 404.6866569881.

The spelling of 66276056 in words is "sixty-six million, two hundred seventy-six thousand, fifty-six".