1065510055505 has 8 divisors (see below), whose sum is σ = 1461270933312. Its totient is φ = 730635466608.

The previous prime is 1065510055501. The next prime is 1065510055507. The reversal of 1065510055505 is 5055500155601.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1065510055505 - 2² = 1065510055501 is a prime.

It is a super-2 number, since 2×1065510055505² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1065510055501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15221572187 + ... + 15221572256.

It is an arithmetic number, because the mean of its divisors is an integer number (182658866664).

Almost surely, 2^{1065510055505} is an apocalyptic number.

It is an amenable number.

1065510055505 is a deficient number, since it is larger than the sum of its proper divisors (395760877807).

1065510055505 is an equidigital number, since it uses as much as digits as its factorization.

1065510055505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30443144455.

The product of its (nonzero) digits is 93750, while the sum is 38.

The spelling of 1065510055505 in words is "one trillion, sixty-five billion, five hundred ten million, fifty-five thousand, five hundred five".