363051166561 has 2 divisors, whose sum is σ = 363051166562. Its totient is φ = 363051166560.

The previous prime is 363051166537. The next prime is 363051166591. The reversal of 363051166561 is 165661150363.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 285909437025 + 77141729536 = 534705^2 + 277744^2 .

It is a cyclic number.

It is not a de Polignac number, because 363051166561 - 2⁷ = 363051166433 is a prime.

It is a super-2 number, since 2×363051166561² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (363051166531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 181525583280 + 181525583281.

It is an arithmetic number, because the mean of its divisors is an integer number (181525583281).

Almost surely, 2^363051166561 is an apocalyptic number.

It is an amenable number.

363051166561 is a deficient number, since it is larger than the sum of its proper divisors (1).

363051166561 is an equidigital number, since it uses as much as digits as its factorization.

363051166561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 291600, while the sum is 43.

The spelling of 363051166561 in words is "three hundred sixty-three billion, fifty-one million, one hundred sixty-six thousand, five hundred sixty-one".