66854226480481 has 16 divisors (see below), whose sum is σ = 73052495769600. Its totient is φ = 60676066760400.

The previous prime is 66854226480469. The next prime is 66854226480553. The reversal of 66854226480481 is 18408462245866.

It is a cyclic number.

It is not a de Polignac number, because 66854226480481 - 2¹⁷ = 66854226349409 is a prime.

It is a super-2 number, since 2×66854226480481² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66854226480281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192650716 + ... + 192997426.

It is an arithmetic number, because the mean of its divisors is an integer number (4565780985600).

Almost surely, 2^{66854226480481} is an apocalyptic number.

It is an amenable number.

66854226480481 is a deficient number, since it is larger than the sum of its proper divisors (6198269289119).

66854226480481 is a wasteful number, since it uses less digits than its factorization.

66854226480481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375660.

The product of its (nonzero) digits is 141557760, while the sum is 64.

The spelling of 66854226480481 in words is "sixty-six trillion, eight hundred fifty-four billion, two hundred twenty-six million, four hundred eighty thousand, four hundred eighty-one".