2000161651 has 8 divisors (see below), whose sum is σ = 2056251744. Its totient is φ = 1944178560.

The previous prime is 2000161643. The next prime is 2000161687. The reversal of 2000161651 is 1561610002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2000161651 - 2³ = 2000161643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2000161621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11931 + ... + 64363.

It is an arithmetic number, because the mean of its divisors is an integer number (257031468).

Almost surely, 2^2000161651 is an apocalyptic number.

2000161651 is a deficient number, since it is larger than the sum of its proper divisors (56090093).

2000161651 is a wasteful number, since it uses less digits than its factorization.

2000161651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53501.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 2000161651 is about 44723.1668266012. The cubic root of 2000161651 is about 1259.9549935633.

Adding to 2000161651 its reverse (1561610002), we get a palindrome (3561771653).

The spelling of 2000161651 in words is "two billion, one hundred sixty-one thousand, six hundred fifty-one".