1065655106651 has 2 divisors, whose sum is σ = 1065655106652. Its totient is φ = 1065655106650.

The previous prime is 1065655106641. The next prime is 1065655106671. The reversal of 1065655106651 is 1566015565601.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1065655106651 is a prime.

It is a super-2 number, since 2×1065655106651² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1065655106596 and 1065655106605.

It is not a weakly prime, because it can be changed into another prime (1065655106641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532827553325 + 532827553326.

It is an arithmetic number, because the mean of its divisors is an integer number (532827553326).

Almost surely, 2^{1065655106651} is an apocalyptic number.

1065655106651 is a deficient number, since it is larger than the sum of its proper divisors (1).

1065655106651 is an equidigital number, since it uses as much as digits as its factorization.

1065655106651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810000, while the sum is 47.

The spelling of 1065655106651 in words is "one trillion, sixty-five billion, six hundred fifty-five million, one hundred six thousand, six hundred fifty-one".