1065667744455 has 16 divisors (see below), whose sum is σ = 1705105759104. Its totient is φ = 568343674400.

The previous prime is 1065667744423. The next prime is 1065667744543. The reversal of 1065667744455 is 5544477665601.

It is not a de Polignac number, because 1065667744455 - 2⁵ = 1065667744423 is a prime.

It is a super-2 number, since 2×1065667744455² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 49209 + ... + 1460738.

It is an arithmetic number, because the mean of its divisors is an integer number (106569109944).

Almost surely, 2^{1065667744455} is an apocalyptic number.

1065667744455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1065667744455 is a deficient number, since it is larger than the sum of its proper divisors (639438014649).

1065667744455 is a wasteful number, since it uses less digits than its factorization.

1065667744455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557006.

The product of its (nonzero) digits is 84672000, while the sum is 60.

The spelling of 1065667744455 in words is "one trillion, sixty-five billion, six hundred sixty-seven million, seven hundred forty-four thousand, four hundred fifty-five".