166600616649 has 16 divisors (see below), whose sum is σ = 224650978560. Its totient is φ = 109808899200.

The previous prime is 166600616647. The next prime is 166600616657. The reversal of 166600616649 is 946616006661.

166600616649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 166600616649 - 2¹ = 166600616647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166600616647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3768624 + ... + 3812574.

It is an arithmetic number, because the mean of its divisors is an integer number (14040686160).

Almost surely, 2^166600616649 is an apocalyptic number.

It is an amenable number.

166600616649 is a deficient number, since it is larger than the sum of its proper divisors (58050361911).

166600616649 is a wasteful number, since it uses less digits than its factorization.

166600616649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58240.

The product of its (nonzero) digits is 1679616, while the sum is 51.

The spelling of 166600616649 in words is "one hundred sixty-six billion, six hundred million, six hundred sixteen thousand, six hundred forty-nine".