21300541155 has 48 divisors (see below), whose sum is σ = 39054090816. Its totient is φ = 10717470720.

The previous prime is 21300541057. The next prime is 21300541177. The reversal of 21300541155 is 55114500312.

It is not a de Polignac number, because 21300541155 - 2¹⁵ = 21300508387 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65406 + ... + 216515.

It is an arithmetic number, because the mean of its divisors is an integer number (813626892).

Almost surely, 2^21300541155 is an apocalyptic number.

21300541155 is a deficient number, since it is larger than the sum of its proper divisors (17753549661).

21300541155 is a wasteful number, since it uses less digits than its factorization.

21300541155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282028 (or 282025 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The spelling of 21300541155 in words is "twenty-one billion, three hundred million, five hundred forty-one thousand, one hundred fifty-five".