21802045159 has 8 divisors (see below), whose sum is σ = 23509266480. Its totient is φ = 20150798400.

The previous prime is 21802045093. The next prime is 21802045163. The reversal of 21802045159 is 95154020812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21802045159 - 2¹¹ = 21802043111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21802040159) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 13992832 + ... + 13994389.

It is an arithmetic number, because the mean of its divisors is an integer number (2938658310).

Almost surely, 2^21802045159 is an apocalyptic number.

21802045159 is a deficient number, since it is larger than the sum of its proper divisors (1707221321).

21802045159 is a wasteful number, since it uses less digits than its factorization.

21802045159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27987281.

The product of its (nonzero) digits is 28800, while the sum is 37.

The spelling of 21802045159 in words is "twenty-one billion, eight hundred two million, forty-five thousand, one hundred fifty-nine".