331454161454077 has 2 divisors, whose sum is σ = 331454161454078. Its totient is φ = 331454161454076.

The previous prime is 331454161453991. The next prime is 331454161454159. The reversal of 331454161454077 is 770454161454133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 250243893171801 + 81210268282276 = 15819099^2 + 9011674^2 .

It is a cyclic number.

It is not a de Polignac number, because 331454161454077 - 2¹⁹ = 331454160929789 is a prime.

It is a super-2 number, since 2×331454161454077² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331454161454477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165727080727038 + 165727080727039.

It is an arithmetic number, because the mean of its divisors is an integer number (165727080727039).

Almost surely, 2^{331454161454077} is an apocalyptic number.

It is an amenable number.

331454161454077 is a deficient number, since it is larger than the sum of its proper divisors (1).

331454161454077 is an equidigital number, since it uses as much as digits as its factorization.

331454161454077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16934400, while the sum is 55.

The spelling of 331454161454077 in words is "three hundred thirty-one trillion, four hundred fifty-four billion, one hundred sixty-one million, four hundred fifty-four thousand, seventy-seven".