2008155404836 has 27 divisors (see below), whose sum is σ = 4088071033137. Its totient is φ = 860629528080.

The previous prime is 2008155404833. The next prime is 2008155404861. The reversal of 2008155404836 is 6384045518002.

The square root of 2008155404836 is 1417094.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 33231102436 + 1974924302400 = 182294^2 + 1405320^2 .

It is a super-3 number, since 3×2008155404836³ (a number of 38 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2008155404833) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 19788706 + ... + 19889926.

Almost surely, 2^{2008155404836} is an apocalyptic number.

2008155404836 is the 1417094-th square number.

It is an amenable number.

2008155404836 is an abundant number, since it is smaller than the sum of its proper divisors (2079915628301).

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

2008155404836 is an frugal number, since it uses more digits than its factorization.

2008155404836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202460 (or 101230 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 46.

The spelling of 2008155404836 in words is "two trillion, eight billion, one hundred fifty-five million, four hundred four thousand, eight hundred thirty-six".