166115600659 has 8 divisors (see below), whose sum is σ = 166323566240. Its totient is φ = 165907719936.

The previous prime is 166115600639. The next prime is 166115600719. The reversal of 166115600659 is 956006511661.

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 166115600659 - 2⁷ = 166115600531 is a prime.

It is a super-2 number, since 2×166115600659² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166115600639) 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, 4481002 + ... + 4517920.

It is an arithmetic number, because the mean of its divisors is an integer number (20790445780).

Almost surely, 2^166115600659 is an apocalyptic number.

166115600659 is a deficient number, since it is larger than the sum of its proper divisors (207965581).

166115600659 is an equidigital number, since it uses as much as digits as its factorization.

166115600659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42429.

The product of its (nonzero) digits is 291600, while the sum is 46.

The spelling of 166115600659 in words is "one hundred sixty-six billion, one hundred fifteen million, six hundred thousand, six hundred fifty-nine".