166324068551 has 8 divisors (see below), whose sum is σ = 168214399200. Its totient is φ = 164434216320.

The previous prime is 166324068539. The next prime is 166324068571. The reversal of 166324068551 is 155860423661.

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-166324068551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166324068496 and 166324068505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166324068571) 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, 604406 + ... + 835436.

It is an arithmetic number, because the mean of its divisors is an integer number (21026799900).

Almost surely, 2^166324068551 is an apocalyptic number.

166324068551 is a deficient number, since it is larger than the sum of its proper divisors (1890330649).

166324068551 is an equidigital number, since it uses as much as digits as its factorization.

166324068551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239209.

The product of its (nonzero) digits is 1036800, while the sum is 47.

The spelling of 166324068551 in words is "one hundred sixty-six billion, three hundred twenty-four million, sixty-eight thousand, five hundred fifty-one".