21151630096 has 45 divisors (see below), whose sum is σ = 41500587189. Its totient is φ = 10443468288.

The previous prime is 21151630081. The next prime is 21151630099. The reversal of 21151630096 is 69003615112.

The square root of 21151630096 is 145436.

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., 8593290000 + 12558340096 = 92700^2 + 112064^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21151630099) 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, 59919456 + ... + 59919808.

Almost surely, 2^21151630096 is an apocalyptic number.

21151630096 is the 145436-th square number.

It is an amenable number.

21151630096 is a deficient number, since it is larger than the sum of its proper divisors (20348957093).

21151630096 is an frugal number, since it uses more digits than its factorization.

21151630096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The spelling of 21151630096 in words is "twenty-one billion, one hundred fifty-one million, six hundred thirty thousand, ninety-six".