320216825455 has 8 divisors (see below), whose sum is σ = 390559538304. Its totient is φ = 251973895200.

The previous prime is 320216825449. The next prime is 320216825483. The reversal of 320216825455 is 554528612023.

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

It is not a de Polignac number, because 320216825455 - 2³ = 320216825447 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 524945311 + ... + 524945920.

It is an arithmetic number, because the mean of its divisors is an integer number (48819942288).

Almost surely, 2^320216825455 is an apocalyptic number.

320216825455 is a deficient number, since it is larger than the sum of its proper divisors (70342712849).

320216825455 is a wasteful number, since it uses less digits than its factorization.

320216825455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049891297.

The product of its (nonzero) digits is 576000, while the sum is 43.

The spelling of 320216825455 in words is "three hundred twenty billion, two hundred sixteen million, eight hundred twenty-five thousand, four hundred fifty-five".