1081065767505 has 16 divisors (see below), whose sum is σ = 1730298272064. Its totient is φ = 576370728000.

The previous prime is 1081065767447. The next prime is 1081065767531. The reversal of 1081065767505 is 5057675601801.

It is not a de Polignac number, because 1081065767505 - 2¹⁵ = 1081065734737 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 12309871 + ... + 12397380.

It is an arithmetic number, because the mean of its divisors is an integer number (108143642004).

Almost surely, 2^{1081065767505} is an apocalyptic number.

1081065767505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1081065767505 is a deficient number, since it is larger than the sum of its proper divisors (649232504559).

1081065767505 is a wasteful number, since it uses less digits than its factorization.

1081065767505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24710176.

The product of its (nonzero) digits is 1764000, while the sum is 51.

The spelling of 1081065767505 in words is "one trillion, eighty-one billion, sixty-five million, seven hundred sixty-seven thousand, five hundred five".