21264225632032 has 48 divisors (see below), whose sum is σ = 42271660372032. Its totient is φ = 10528572061440.

The previous prime is 21264225632021. The next prime is 21264225632077. The reversal of 21264225632032 is 23023652246212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140587807 + ... + 140738977.

It is an arithmetic number, because the mean of its divisors is an integer number (880659591084).

Almost surely, 2^{21264225632032} is an apocalyptic number.

It is an amenable number.

21264225632032 is a deficient number, since it is larger than the sum of its proper divisors (21007434740000).

21264225632032 is a wasteful number, since it uses less digits than its factorization.

21264225632032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193961 (or 193953 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 40.

Adding to 21264225632032 its reverse (23023652246212), we get a palindrome (44287877878244).

The spelling of 21264225632032 in words is "twenty-one trillion, two hundred sixty-four billion, two hundred twenty-five million, six hundred thirty-two thousand, thirty-two".