66876895247328 has 72 divisors (see below), whose sum is σ = 190431081038016. Its totient is φ = 22263004915200.

The previous prime is 66876895247317. The next prime is 66876895247329. The reversal of 66876895247328 is 82374259867866.

66876895247328 is a `hidden beast` number, since 6 + 6 + 8 + 7 + 6 + 89 + 524 + 7 + 3 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×66876895247328² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66876895247329) 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, 152350768 + ... + 152789103.

It is an arithmetic number, because the mean of its divisors is an integer number (2644876125528).

Almost surely, 2^{66876895247328} is an apocalyptic number.

It is an amenable number.

66876895247328 is an abundant number, since it is smaller than the sum of its proper divisors (123554185790688).

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

66876895247328 is a wasteful number, since it uses less digits than its factorization.

66876895247328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305140648 (or 305140637 counting only the distinct ones).

The product of its digits is 11705057280, while the sum is 81.

The spelling of 66876895247328 in words is "sixty-six trillion, eight hundred seventy-six billion, eight hundred ninety-five million, two hundred forty-seven thousand, three hundred twenty-eight".