21362385355 has 16 divisors (see below), whose sum is σ = 26567267328. Its totient is φ = 16472700000.

The previous prime is 21362385313. The next prime is 21362385361. The reversal of 21362385355 is 55358326312.

It is not a de Polignac number, because 21362385355 - 2⁷ = 21362385227 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235641 + ... + 313450.

It is an arithmetic number, because the mean of its divisors is an integer number (1660454208).

Almost surely, 2^21362385355 is an apocalyptic number.

21362385355 is a deficient number, since it is larger than the sum of its proper divisors (5204881973).

21362385355 is a wasteful number, since it uses less digits than its factorization.

21362385355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549378.

The product of its digits is 648000, while the sum is 43.

The spelling of 21362385355 in words is "twenty-one billion, three hundred sixty-two million, three hundred eighty-five thousand, three hundred fifty-five".