1065511655101 has 2 divisors, whose sum is σ = 1065511655102. Its totient is φ = 1065511655100.

The previous prime is 1065511655059. The next prime is 1065511655107. The reversal of 1065511655101 is 1015561155601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 538537290201 + 526974364900 = 733851^2 + 725930^2 .

It is a cyclic number.

It is not a de Polignac number, because 1065511655101 - 2⁹ = 1065511654589 is a prime.

It is a super-2 number, since 2×1065511655101² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1065511655107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532755827550 + 532755827551.

It is an arithmetic number, because the mean of its divisors is an integer number (532755827551).

Almost surely, 2^{1065511655101} is an apocalyptic number.

It is an amenable number.

1065511655101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1065511655101 is an equidigital number, since it uses as much as digits as its factorization.

1065511655101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22500, while the sum is 37.

The spelling of 1065511655101 in words is "one trillion, sixty-five billion, five hundred eleven million, six hundred fifty-five thousand, one hundred one".