180421210550008 has 128 divisors (see below), whose sum is σ = 371410161736320. Its totient is φ = 81902120509440.

The previous prime is 180421210549927. The next prime is 180421210550041. The reversal of 180421210550008 is 800055012124081.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6754046860 + ... + 6754073572.

It is an arithmetic number, because the mean of its divisors is an integer number (2901641888565).

Almost surely, 2^{180421210550008} is an apocalyptic number.

It is an amenable number.

180421210550008 is an abundant number, since it is smaller than the sum of its proper divisors (190988951186312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

180421210550008 is a wasteful number, since it uses less digits than its factorization.

180421210550008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51017 (or 51013 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 37.

Adding to 180421210550008 its reverse (800055012124081), we get a palindrome (980476222674089).

The spelling of 180421210550008 in words is "one hundred eighty trillion, four hundred twenty-one billion, two hundred ten million, five hundred fifty thousand, eight".