2051348166 has 48 divisors (see below), whose sum is σ = 5267668224. Its totient is φ = 586098504.

The previous prime is 2051348141. The next prime is 2051348177. The reversal of 2051348166 is 6618431502.

It is a happy number.

2051348166 is a `hidden beast` number, since 2 + 0 + 513 + 4 + 81 + 66 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2051348166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 298090 + ... + 304893.

It is an arithmetic number, because the mean of its divisors is an integer number (109743088).

Almost surely, 2^2051348166 is an apocalyptic number.

2051348166 is an abundant number, since it is smaller than the sum of its proper divisors (3216320058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2051348166 is an equidigital number, since it uses as much as digits as its factorization.

2051348166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603007 (or 602995 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 2051348166 is about 45291.8112466260. The cubic root of 2051348166 is about 1270.6125067463.

Adding to 2051348166 its reverse (6618431502), we get a palindrome (8669779668).

The spelling of 2051348166 in words is "two billion, fifty-one million, three hundred forty-eight thousand, one hundred sixty-six".