21151453162 has 8 divisors (see below), whose sum is σ = 36259634016. Its totient is φ = 9064908492.

The previous prime is 21151453129. The next prime is 21151453181. The reversal of 21151453162 is 26135415112.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 755409028 + ... + 755409055.

It is an arithmetic number, because the mean of its divisors is an integer number (4532454252).

Almost surely, 2^21151453162 is an apocalyptic number.

21151453162 is a deficient number, since it is larger than the sum of its proper divisors (15108180854).

21151453162 is a wasteful number, since it uses less digits than its factorization.

21151453162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1510818092.

The product of its digits is 7200, while the sum is 31.

Adding to 21151453162 its reverse (26135415112), we get a palindrome (47286868274).

The spelling of 21151453162 in words is "twenty-one billion, one hundred fifty-one million, four hundred fifty-three thousand, one hundred sixty-two".