21153002064260 has 24 divisors (see below), whose sum is σ = 48459604729536. Its totient is φ = 7692000750560.

The previous prime is 21153002064211. The next prime is 21153002064263. The reversal of 21153002064260 is 6246020035112.

It is not an unprimeable number, because it can be changed into a prime (21153002064263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48075004472 + ... + 48075004911.

It is an arithmetic number, because the mean of its divisors is an integer number (2019150197064).

Almost surely, 2^{21153002064260} is an apocalyptic number.

21153002064260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21153002064260 is an abundant number, since it is smaller than the sum of its proper divisors (27306602665276).

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

21153002064260 is a wasteful number, since it uses less digits than its factorization.

21153002064260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96150009403 (or 96150009401 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 21153002064260 its reverse (6246020035112), we get a palindrome (27399022099372).

The spelling of 21153002064260 in words is "twenty-one trillion, one hundred fifty-three billion, two million, sixty-four thousand, two hundred sixty".