320008556801 has 32 divisors (see below), whose sum is σ = 352638074880. Its totient is φ = 289080633600.

The previous prime is 320008556783. The next prime is 320008556807. The reversal of 320008556801 is 108655800023.

It is a cyclic number.

It is not a de Polignac number, because 320008556801 - 2²² = 320004362497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320008556807) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42152516 + ... + 42160106.

It is an arithmetic number, because the mean of its divisors is an integer number (11019939840).

Almost surely, 2^320008556801 is an apocalyptic number.

320008556801 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

320008556801 is a deficient number, since it is larger than the sum of its proper divisors (32629518079).

320008556801 is a wasteful number, since it uses less digits than its factorization.

320008556801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8285.

The product of its (nonzero) digits is 57600, while the sum is 38.

The spelling of 320008556801 in words is "three hundred twenty billion, eight million, five hundred fifty-six thousand, eight hundred one".