66854226480480 has 192 divisors, whose sum is σ = 237955722278400. Its totient is φ = 17525627665920.

The previous prime is 66854226480469. The next prime is 66854226480553. The reversal of 66854226480480 is 8408462245866.

66854226480480 is a `hidden beast` number, since 6 + 6 + 8 + 54 + 2 + 26 + 4 + 80 + 480 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130893556 + ... + 131403315.

It is an arithmetic number, because the mean of its divisors is an integer number (1239352720200).

Almost surely, 2^{66854226480480} is an apocalyptic number.

66854226480480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66854226480480 is an abundant number, since it is smaller than the sum of its proper divisors (171101495797920).

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

66854226480480 is a wasteful number, since it uses less digits than its factorization.

66854226480480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262296954 (or 262296940 counting only the distinct ones).

The product of its (nonzero) digits is 141557760, while the sum is 63.

The spelling of 66854226480480 in words is "sixty-six trillion, eight hundred fifty-four billion, two hundred twenty-six million, four hundred eighty thousand, four hundred eighty".