666141427171001 has 16 divisors (see below), whose sum is σ = 684532313963904. Its totient is φ = 647770934363904.

The previous prime is 666141427170907. The next prime is 666141427171027. The reversal of 666141427171001 is 100171724141666.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-666141427171001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (666141427171091) 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, 2461921346 + ... + 2462191908.

It is an arithmetic number, because the mean of its divisors is an integer number (42783269622744).

Almost surely, 2^{666141427171001} is an apocalyptic number.

It is an amenable number.

666141427171001 is a deficient number, since it is larger than the sum of its proper divisors (18390886792903).

666141427171001 is a wasteful number, since it uses less digits than its factorization.

666141427171001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308000.

The product of its (nonzero) digits is 338688, while the sum is 47.

The spelling of 666141427171001 in words is "six hundred sixty-six trillion, one hundred forty-one billion, four hundred twenty-seven million, one hundred seventy-one thousand, one".