354316066400981 has 2 divisors, whose sum is σ = 354316066400982. Its totient is φ = 354316066400980.

The previous prime is 354316066400963. The next prime is 354316066400999. The reversal of 354316066400981 is 189004660613453.

It is a balanced prime because it is at equal distance from previous prime (354316066400963) and next prime (354316066400999).

It can be written as a sum of positive squares in only one way, i.e., 352091073528100 + 2224992872881 = 18764090^2 + 1491641^2 .

It is a cyclic number.

It is not a de Polignac number, because 354316066400981 - 2⁴⁶ = 283947322223317 is a prime.

It is a super-2 number, since 2×354316066400981² (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 (354316066430981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177158033200490 + 177158033200491.

It is an arithmetic number, because the mean of its divisors is an integer number (177158033200491).

Almost surely, 2^{354316066400981} is an apocalyptic number.

It is an amenable number.

354316066400981 is a deficient number, since it is larger than the sum of its proper divisors (1).

354316066400981 is an equidigital number, since it uses as much as digits as its factorization.

354316066400981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11197440, while the sum is 56.

The spelling of 354316066400981 in words is "three hundred fifty-four trillion, three hundred sixteen billion, sixty-six million, four hundred thousand, nine hundred eighty-one".