21161200362 has 8 divisors (see below), whose sum is σ = 42322400736. Its totient is φ = 7053733452.

The previous prime is 21161200351. The next prime is 21161200387. The reversal of 21161200362 is 26300216112.

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

21161200362 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1763433358 + ... + 1763433369.

It is an arithmetic number, because the mean of its divisors is an integer number (5290300092).

Almost surely, 2^21161200362 is an apocalyptic number.

21161200362 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21161200362 is a wasteful number, since it uses less digits than its factorization.

21161200362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3526866732.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 21161200362 its reverse (26300216112), we get a palindrome (47461416474).

The spelling of 21161200362 in words is "twenty-one billion, one hundred sixty-one million, two hundred thousand, three hundred sixty-two".