21153160522 has 32 divisors (see below), whose sum is σ = 35980761600. Its totient is φ = 9246115008.

The previous prime is 21153160487. The next prime is 21153160547. The reversal of 21153160522 is 22506135112.

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 15 ways as a sum of consecutive naturals, for example, 2192004 + ... + 2201632.

It is an arithmetic number, because the mean of its divisors is an integer number (1124398800).

Almost surely, 2^21153160522 is an apocalyptic number.

21153160522 is a deficient number, since it is larger than the sum of its proper divisors (14827601078).

21153160522 is a wasteful number, since it uses less digits than its factorization.

21153160522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14110.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 21153160522 its reverse (22506135112), we get a palindrome (43659295634).

The spelling of 21153160522 in words is "twenty-one billion, one hundred fifty-three million, one hundred sixty thousand, five hundred twenty-two".