21203055426632 has 16 divisors (see below), whose sum is σ = 39766750805760. Its totient is φ = 10598588545104.

The previous prime is 21203055426617. The next prime is 21203055426673. The reversal of 21203055426632 is 23662455030212.

It is a self number, because there is not a number n which added to its sum of digits gives 21203055426632.

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 3 ways as a sum of consecutive naturals, for example, 367365368 + ... + 367423079.

It is an arithmetic number, because the mean of its divisors is an integer number (2485421925360).

Almost surely, 2^{21203055426632} is an apocalyptic number.

It is an amenable number.

21203055426632 is a deficient number, since it is larger than the sum of its proper divisors (18563695379128).

21203055426632 is a wasteful number, since it uses less digits than its factorization.

21203055426632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734792060 (or 734792056 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 41.

The spelling of 21203055426632 in words is "twenty-one trillion, two hundred three billion, fifty-five million, four hundred twenty-six thousand, six hundred thirty-two".