320055551421 has 8 divisors (see below), whose sum is σ = 426746959680. Its totient is φ = 213367255392.

The previous prime is 320055551419. The next prime is 320055551447. The reversal of 320055551421 is 124155550023.

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

It is not a de Polignac number, because 320055551421 - 2¹ = 320055551419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320055551521) 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, 526480 + ... + 957753.

It is an arithmetic number, because the mean of its divisors is an integer number (53343369960).

Almost surely, 2^320055551421 is an apocalyptic number.

It is an amenable number.

320055551421 is a deficient number, since it is larger than the sum of its proper divisors (106691408259).

320055551421 is a wasteful number, since it uses less digits than its factorization.

320055551421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1556115.

The product of its (nonzero) digits is 30000, while the sum is 33.

The spelling of 320055551421 in words is "three hundred twenty billion, fifty-five million, five hundred fifty-one thousand, four hundred twenty-one".