1065368505540 has 48 divisors (see below), whose sum is σ = 3158504278272. Its totient is φ = 267386605056.

The previous prime is 1065368505527. The next prime is 1065368505587. The reversal of 1065368505540 is 455058635601.

It is a happy number.

It is a super-2 number, since 2×1065368505540² (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 1065368505540.

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, 522238444 + ... + 522240483.

It is an arithmetic number, because the mean of its divisors is an integer number (65802172464).

Almost surely, 2^{1065368505540} is an apocalyptic number.

1065368505540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1065368505540 is an abundant number, since it is smaller than the sum of its proper divisors (2093135772732).

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

1065368505540 is a wasteful number, since it uses less digits than its factorization.

1065368505540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044478956 (or 1044478954 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 48.

The spelling of 1065368505540 in words is "one trillion, sixty-five billion, three hundred sixty-eight million, five hundred five thousand, five hundred forty".