320040215032 has 8 divisors (see below), whose sum is σ = 600075403200. Its totient is φ = 160020107512.

The previous prime is 320040215021. The next prime is 320040215039. The reversal of 320040215032 is 230512040023.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×320040215032² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320040214994 and 320040215012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320040215039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20002513432 + ... + 20002513447.

It is an arithmetic number, because the mean of its divisors is an integer number (75009425400).

Almost surely, 2^320040215032 is an apocalyptic number.

It is an amenable number.

320040215032 is a deficient number, since it is larger than the sum of its proper divisors (280035188168).

320040215032 is a wasteful number, since it uses less digits than its factorization.

320040215032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40005026885 (or 40005026881 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 320040215032 its reverse (230512040023), we get a palindrome (550552255055).

The spelling of 320040215032 in words is "three hundred twenty billion, forty million, two hundred fifteen thousand, thirty-two".