66268876224 has 112 divisors (see below), whose sum is σ = 184019415552. Its totient is φ = 21006830592.

The previous prime is 66268876217. The next prime is 66268876237. The reversal of 66268876224 is 42267886266.

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, 720597 + ... + 807339.

It is an arithmetic number, because the mean of its divisors is an integer number (1643030496).

Almost surely, 2^66268876224 is an apocalyptic number.

66268876224 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66268876224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92009707776).

66268876224 is an abundant number, since it is smaller than the sum of its proper divisors (117750539328).

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

66268876224 is a wasteful number, since it uses less digits than its factorization.

66268876224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86954 (or 86944 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 57.

The spelling of 66268876224 in words is "sixty-six billion, two hundred sixty-eight million, eight hundred seventy-six thousand, two hundred twenty-four".