20160206002100 has 36 divisors (see below), whose sum is σ = 43759468321548. Its totient is φ = 8061903360000.

The previous prime is 20160206002073. The next prime is 20160206002103. The reversal of 20160206002100 is 120060206102.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 717944403856 + 19442261598244 = 847316^2 + 4409338^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20160206002103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26866061 + ... + 27606260.

Almost surely, 2^{20160206002100} is an apocalyptic number.

20160206002100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20160206002100 is an abundant number, since it is smaller than the sum of its proper divisors (23599262319448).

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

20160206002100 is a wasteful number, since it uses less digits than its factorization.

20160206002100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54476036 (or 54476029 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 20160206002100 its reverse (120060206102), we get a palindrome (20280266208202).

It can be divided in two parts, 20160206002 and 100, that added together give a palindrome (20160206102).

The spelling of 20160206002100 in words is "twenty trillion, one hundred sixty billion, two hundred six million, two thousand, one hundred".