1065646363551 has 16 divisors (see below), whose sum is σ = 1771464085248. Its totient is φ = 553582526400.

The previous prime is 1065646363517. The next prime is 1065646363559. The reversal of 1065646363551 is 1553636465601.

It is not a de Polignac number, because 1065646363551 - 2⁶ = 1065646363487 is a prime.

It is a super-2 number, since 2×1065646363551² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1065646363494 and 1065646363503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1065646363559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2306593630 + ... + 2306594091.

It is an arithmetic number, because the mean of its divisors is an integer number (110716505328).

Almost surely, 2^{1065646363551} is an apocalyptic number.

1065646363551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1065646363551 is a deficient number, since it is larger than the sum of its proper divisors (705817721697).

1065646363551 is a wasteful number, since it uses less digits than its factorization.

1065646363551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4613187742.

The product of its (nonzero) digits is 5832000, while the sum is 51.

The spelling of 1065646363551 in words is "one trillion, sixty-five billion, six hundred forty-six million, three hundred sixty-three thousand, five hundred fifty-one".