1065106155551 has 2 divisors, whose sum is σ = 1065106155552. Its totient is φ = 1065106155550.

The previous prime is 1065106155497. The next prime is 1065106155563. The reversal of 1065106155551 is 1555516015601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1065106155551 - 2²² = 1065101961247 is a prime.

It is a super-2 number, since 2×1065106155551² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1065106155499 and 1065106155508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1065106155151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532553077775 + 532553077776.

It is an arithmetic number, because the mean of its divisors is an integer number (532553077776).

Almost surely, 2^{1065106155551} is an apocalyptic number.

1065106155551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1065106155551 is an equidigital number, since it uses as much as digits as its factorization.

1065106155551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112500, while the sum is 41.

The spelling of 1065106155551 in words is "one trillion, sixty-five billion, one hundred six million, one hundred fifty-five thousand, five hundred fifty-one".