1065086989520 has 20 divisors (see below), whose sum is σ = 2476327250820. Its totient is φ = 426034795776.

The previous prime is 1065086989493. The next prime is 1065086989529. The reversal of 1065086989520 is 259896805601.

It can be written as a sum of positive squares in 2 ways, for example, as 338132946064 + 726954043456 = 581492^2 + 852616^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×1065086989520² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1065086989520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1065086989529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6656793605 + ... + 6656793764.

It is an arithmetic number, because the mean of its divisors is an integer number (123816362541).

Almost surely, 2^{1065086989520} is an apocalyptic number.

1065086989520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1065086989520 is an abundant number, since it is smaller than the sum of its proper divisors (1411240261300).

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

1065086989520 is a wasteful number, since it uses less digits than its factorization.

1065086989520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13313587382 (or 13313587376 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 59.

The spelling of 1065086989520 in words is "one trillion, sixty-five billion, eighty-six million, nine hundred eighty-nine thousand, five hundred twenty".