180228934186221 has 8 divisors (see below), whose sum is σ = 241896671049664. Its totient is φ = 119356910056800.

The previous prime is 180228934186219. The next prime is 180228934186247. The reversal of 180228934186221 is 122681439822081.

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

It is not a de Polignac number, because 180228934186221 - 2¹ = 180228934186219 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 (180228935186221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198928182976 + ... + 198928183881.

It is an arithmetic number, because the mean of its divisors is an integer number (30237083881208).

Almost surely, 2^{180228934186221} is an apocalyptic number.

It is an amenable number.

180228934186221 is a deficient number, since it is larger than the sum of its proper divisors (61667736863443).

180228934186221 is a wasteful number, since it uses less digits than its factorization.

180228934186221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397856367011.

The product of its (nonzero) digits is 5308416, while the sum is 57.

The spelling of 180228934186221 in words is "one hundred eighty trillion, two hundred twenty-eight billion, nine hundred thirty-four million, one hundred eighty-six thousand, two hundred twenty-one".