2006635156 has 12 divisors (see below), whose sum is σ = 3512116692. Its totient is φ = 1003173248.

The previous prime is 2006635123. The next prime is 2006635219. The reversal of 2006635156 is 6515366002.

It can be written as a sum of positive squares in 2 ways, for example, as 1819875600 + 186759556 = 42660^2 + 13666^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1015 + ... + 63358.

It is an arithmetic number, because the mean of its divisors is an integer number (292676391).

Almost surely, 2^2006635156 is an apocalyptic number.

It is an amenable number.

2006635156 is a deficient number, since it is larger than the sum of its proper divisors (1505481536).

2006635156 is a wasteful number, since it uses less digits than its factorization.

2006635156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72170 (or 72168 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 2006635156 is about 44795.4814239115. The cubic root of 2006635156 is about 1261.3128073919.

The spelling of 2006635156 in words is "two billion, six million, six hundred thirty-five thousand, one hundred fifty-six".