20162100202 has 4 divisors (see below), whose sum is σ = 30243150306. Its totient is φ = 10081050100.

The previous prime is 20162100187. The next prime is 20162100229. The reversal of 20162100202 is 20200126102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20141570241 + 20529961 = 141921^2 + 4531^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5040525049 + ... + 5040525052.

Almost surely, 2^20162100202 is an apocalyptic number.

20162100202 is a deficient number, since it is larger than the sum of its proper divisors (10081050104).

20162100202 is a wasteful number, since it uses less digits than its factorization.

20162100202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10081050103.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20162100202 its reverse (20200126102), we get a palindrome (40362226304).

The spelling of 20162100202 in words is "twenty billion, one hundred sixty-two million, one hundred thousand, two hundred two".