166010649 has 8 divisors (see below), whose sum is σ = 252968640. Its totient is φ = 94863216.

The previous prime is 166010633. The next prime is 166010651. The reversal of 166010649 is 946010661.

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

It is not a de Polignac number, because 166010649 - 2⁴ = 166010633 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (166015649) 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, 3952614 + ... + 3952655.

It is an arithmetic number, because the mean of its divisors is an integer number (31621080).

Almost surely, 2^166010649 is an apocalyptic number.

It is an amenable number.

166010649 is a deficient number, since it is larger than the sum of its proper divisors (86957991).

166010649 is an equidigital number, since it uses as much as digits as its factorization.

166010649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7905279.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 166010649 is about 12884.5119814450. The cubic root of 166010649 is about 549.5982178592.

The spelling of 166010649 in words is "one hundred sixty-six million, ten thousand, six hundred forty-nine".