201666524000023 has 8 divisors (see below), whose sum is σ = 203313796772400. Its totient is φ = 200023168643520.

The previous prime is 201666524000021. The next prime is 201666524000077. The reversal of 201666524000023 is 320000425666102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201666524000023 - 2¹ = 201666524000021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201666524000021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 979250590 + ... + 979456507.

It is an arithmetic number, because the mean of its divisors is an integer number (25414224596550).

Almost surely, 2^{201666524000023} is an apocalyptic number.

201666524000023 is a deficient number, since it is larger than the sum of its proper divisors (1647272772377).

201666524000023 is a wasteful number, since it uses less digits than its factorization.

201666524000023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1958707937.

The product of its (nonzero) digits is 103680, while the sum is 37.

Adding to 201666524000023 its reverse (320000425666102), we get a palindrome (521666949666125).

The spelling of 201666524000023 in words is "two hundred one trillion, six hundred sixty-six billion, five hundred twenty-four million, twenty-three", and thus it is an aban number.