1665034430201 has 8 divisors (see below), whose sum is σ = 1723614196224. Its totient is φ = 1606758975360.

The previous prime is 1665034430149. The next prime is 1665034430233. The reversal of 1665034430201 is 1020344305661.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1665034430201 is a prime.

It is a super-4 number, since 4×1665034430201⁴ (a number of 50 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1665034430281) 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, 76066661 + ... + 76088546.

It is an arithmetic number, because the mean of its divisors is an integer number (215451774528).

Almost surely, 2^{1665034430201} is an apocalyptic number.

It is an amenable number.

1665034430201 is a deficient number, since it is larger than the sum of its proper divisors (58579766023).

1665034430201 is a wasteful number, since it uses less digits than its factorization.

1665034430201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152155591.

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 1665034430201 its reverse (1020344305661), we get a palindrome (2685378735862).

The spelling of 1665034430201 in words is "one trillion, six hundred sixty-five billion, thirty-four million, four hundred thirty thousand, two hundred one".