49666161 has 16 divisors (see below), whose sum is σ = 68302080. Its totient is φ = 32082960.

The previous prime is 49666157. The next prime is 49666181. The reversal of 49666161 is 16166694.

It is not a de Polignac number, because 49666161 - 2² = 49666157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49666181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15430 + ... + 18368.

It is an arithmetic number, because the mean of its divisors is an integer number (4268880).

Almost surely, 2^49666161 is an apocalyptic number.

It is an amenable number.

49666161 is a deficient number, since it is larger than the sum of its proper divisors (18635919).

49666161 is a wasteful number, since it uses less digits than its factorization.

49666161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3116.

The product of its digits is 46656, while the sum is 39.

The square root of 49666161 is about 7047.4222947117. The cubic root of 49666161 is about 367.5814026720.

The spelling of 49666161 in words is "forty-nine million, six hundred sixty-six thousand, one hundred sixty-one".