320654064261 has 8 divisors (see below), whose sum is σ = 427546766304. Its totient is φ = 213765369200.

The previous prime is 320654064259. The next prime is 320654064299. The reversal of 320654064261 is 162460456023.

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

It is a cyclic number.

It is not a de Polignac number, because 320654064261 - 2¹ = 320654064259 is a prime.

It is a super-2 number, since 2×320654064261² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320654064161) 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, 809766 + ... + 1138871.

It is an arithmetic number, because the mean of its divisors is an integer number (53443345788).

Almost surely, 2^320654064261 is an apocalyptic number.

It is an amenable number.

320654064261 is a deficient number, since it is larger than the sum of its proper divisors (106892702043).

320654064261 is a wasteful number, since it uses less digits than its factorization.

320654064261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2003491.

The product of its (nonzero) digits is 207360, while the sum is 39.

The spelling of 320654064261 in words is "three hundred twenty billion, six hundred fifty-four million, sixty-four thousand, two hundred sixty-one".