666017441573061 has 16 divisors (see below), whose sum is σ = 916671502450688. Its totient is φ = 429687577191600.

The previous prime is 666017441573053. The next prime is 666017441573087. The reversal of 666017441573061 is 160375144710666.

It is not a de Polignac number, because 666017441573061 - 2³ = 666017441573053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 666017441572992 and 666017441573010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666017441573041) 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, 28399320 + ... + 46244526.

It is an arithmetic number, because the mean of its divisors is an integer number (57291968903168).

Almost surely, 2^{666017441573061} is an apocalyptic number.

It is an amenable number.

666017441573061 is a deficient number, since it is larger than the sum of its proper divisors (250654060877627).

666017441573061 is a wasteful number, since it uses less digits than its factorization.

666017441573061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18246552.

The product of its (nonzero) digits is 15240960, while the sum is 57.

The spelling of 666017441573061 in words is "six hundred sixty-six trillion, seventeen billion, four hundred forty-one million, five hundred seventy-three thousand, sixty-one".