166101006512321 has 8 divisors (see below), whose sum is σ = 169927752536640. Its totient is φ = 162307976312368.

The previous prime is 166101006512299. The next prime is 166101006512333. The reversal of 166101006512321 is 123215600101661.

166101006512321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-166101006512321 is a prime.

It is a super-2 number, since 2×166101006512321² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166101006517321) 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, 8428946126 + ... + 8428965831.

It is an arithmetic number, because the mean of its divisors is an integer number (21240969067080).

Almost surely, 2^{166101006512321} is an apocalyptic number.

It is an amenable number.

166101006512321 is a deficient number, since it is larger than the sum of its proper divisors (3826746024319).

166101006512321 is a wasteful number, since it uses less digits than its factorization.

166101006512321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16857912183.

The product of its (nonzero) digits is 12960, while the sum is 35.

Adding to 166101006512321 its reverse (123215600101661), we get a palindrome (289316606613982).

The spelling of 166101006512321 in words is "one hundred sixty-six trillion, one hundred one billion, six million, five hundred twelve thousand, three hundred twenty-one".