320006268538 has 16 divisors (see below), whose sum is σ = 524112954336. Its totient is φ = 145327857840.

The previous prime is 320006268493. The next prime is 320006268557. The reversal of 320006268538 is 835862600023.

It is a super-2 number, since 2×320006268538² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320006268494 and 320006268503.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6451581 + ... + 6500992.

It is an arithmetic number, because the mean of its divisors is an integer number (32757059646).

Almost surely, 2^320006268538 is an apocalyptic number.

320006268538 is a deficient number, since it is larger than the sum of its proper divisors (204106685798).

320006268538 is a wasteful number, since it uses less digits than its factorization.

320006268538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12953709.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 320006268538 in words is "three hundred twenty billion, six million, two hundred sixty-eight thousand, five hundred thirty-eight".