328156562549 has 2 divisors, whose sum is σ = 328156562550. Its totient is φ = 328156562548.

The previous prime is 328156562537. The next prime is 328156562563. The reversal of 328156562549 is 945265651823.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 244718196100 + 83438366449 = 494690^2 + 288857^2 .

It is a cyclic number.

It is not a de Polignac number, because 328156562549 - 2⁴ = 328156562533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 328156562494 and 328156562503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328156562579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164078281274 + 164078281275.

It is an arithmetic number, because the mean of its divisors is an integer number (164078281275).

Almost surely, 2^328156562549 is an apocalyptic number.

It is an amenable number.

328156562549 is a deficient number, since it is larger than the sum of its proper divisors (1).

328156562549 is an equidigital number, since it uses as much as digits as its factorization.

328156562549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552000, while the sum is 56.

The spelling of 328156562549 in words is "three hundred twenty-eight billion, one hundred fifty-six million, five hundred sixty-two thousand, five hundred forty-nine".