1065081456880 has 80 divisors (see below), whose sum is σ = 2869933883904. Its totient is φ = 360027521280.

The previous prime is 1065081456863. The next prime is 1065081456977. The reversal of 1065081456880 is 886541805601.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1065081456880² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13354122 + ... + 13433641.

Almost surely, 2^{1065081456880} is an apocalyptic number.

1065081456880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1065081456880 is an abundant number, since it is smaller than the sum of its proper divisors (1804852427024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1065081456880 is a wasteful number, since it uses less digits than its factorization.

1065081456880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26787854 (or 26787848 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 52.

The spelling of 1065081456880 in words is "one trillion, sixty-five billion, eighty-one million, four hundred fifty-six thousand, eight hundred eighty".