1084566665251 has 2 divisors, whose sum is σ = 1084566665252. Its totient is φ = 1084566665250.

The previous prime is 1084566665249. The next prime is 1084566665293. The reversal of 1084566665251 is 1525666654801.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1084566665251 - 2¹ = 1084566665249 is a prime.

Together with 1084566665249, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1084566665192 and 1084566665201.

It is not a weakly prime, because it can be changed into another prime (1084566645251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 542283332625 + 542283332626.

It is an arithmetic number, because the mean of its divisors is an integer number (542283332626).

Almost surely, 2^{1084566665251} is an apocalyptic number.

1084566665251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1084566665251 is an equidigital number, since it uses as much as digits as its factorization.

1084566665251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368000, while the sum is 55.

The spelling of 1084566665251 in words is "one trillion, eighty-four billion, five hundred sixty-six million, six hundred sixty-five thousand, two hundred fifty-one".