2061668358 has 24 divisors (see below), whose sum is σ = 4511179296. Its totient is φ = 680418000.

The previous prime is 2061668341. The next prime is 2061668363. The reversal of 2061668358 is 8538661602.

2061668358 is a `hidden beast` number, since 20 + 616 + 6 + 8 + 3 + 5 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 565198 + ... + 568833.

It is an arithmetic number, because the mean of its divisors is an integer number (187965804).

Almost surely, 2^2061668358 is an apocalyptic number.

2061668358 is an abundant number, since it is smaller than the sum of its proper divisors (2449510938).

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

2061668358 is a wasteful number, since it uses less digits than its factorization.

2061668358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134140 (or 1134137 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 2061668358 is about 45405.5983112215. The cubic root of 2061668358 is about 1272.7397315568.

The spelling of 2061668358 in words is "two billion, sixty-one million, six hundred sixty-eight thousand, three hundred fifty-eight".