405161362462657 has 2 divisors, whose sum is σ = 405161362462658. Its totient is φ = 405161362462656.

The previous prime is 405161362462643. The next prime is 405161362462667. The reversal of 405161362462657 is 756264263161504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 341127453972496 + 64033908490161 = 18469636^2 + 8002119^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-405161362462657 is a prime.

It is not a weakly prime, because it can be changed into another prime (405161362462667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202580681231328 + 202580681231329.

It is an arithmetic number, because the mean of its divisors is an integer number (202580681231329).

Almost surely, 2^{405161362462657} is an apocalyptic number.

It is an amenable number.

405161362462657 is a deficient number, since it is larger than the sum of its proper divisors (1).

405161362462657 is an equidigital number, since it uses as much as digits as its factorization.

405161362462657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43545600, while the sum is 58.

The spelling of 405161362462657 in words is "four hundred five trillion, one hundred sixty-one billion, three hundred sixty-two million, four hundred sixty-two thousand, six hundred fifty-seven".