2051641506 has 16 divisors (see below), whose sum is σ = 4103920800. Its totient is φ = 683774208.

The previous prime is 2051641463. The next prime is 2051641507. The reversal of 2051641506 is 6051461502.

It is not an unprimeable number, because it can be changed into a prime (2051641507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22105 + ... + 67763.

It is an arithmetic number, because the mean of its divisors is an integer number (256495050).

Almost surely, 2^2051641506 is an apocalyptic number.

2051641506 is an abundant number, since it is smaller than the sum of its proper divisors (2052279294).

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

2051641506 is a wasteful number, since it uses less digits than its factorization.

2051641506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53153.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 2051641506 is about 45295.0494645938. The cubic root of 2051641506 is about 1270.6730691469.

The spelling of 2051641506 in words is "two billion, fifty-one million, six hundred forty-one thousand, five hundred six".