320623553661412 has 6 divisors (see below), whose sum is σ = 561091218907478. Its totient is φ = 160311776830704.

The previous prime is 320623553661409. The next prime is 320623553661413. The reversal of 320623553661412 is 214166355326023.

It can be written as a sum of positive squares in only one way, i.e., 320362244579556 + 261309081856 = 17898666^2 + 511184^2 .

It is a super-2 number, since 2×320623553661412² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (320623553661413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40077944207673 + ... + 40077944207680.

Almost surely, 2^{320623553661412} is an apocalyptic number.

It is an amenable number.

320623553661412 is a deficient number, since it is larger than the sum of its proper divisors (240467665246066).

320623553661412 is a wasteful number, since it uses less digits than its factorization.

320623553661412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80155888415357 (or 80155888415355 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 49.

The spelling of 320623553661412 in words is "three hundred twenty trillion, six hundred twenty-three billion, five hundred fifty-three million, six hundred sixty-one thousand, four hundred twelve".