1065666115053 has 24 divisors (see below), whose sum is σ = 1540464127488. Its totient is φ = 709904937312.

The previous prime is 1065666115051. The next prime is 1065666115079. The reversal of 1065666115053 is 3505116665601.

It is not a de Polignac number, because 1065666115053 - 2¹ = 1065666115051 is a prime.

It is a super-2 number, since 2×1065666115053² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1065666115051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85063276 + ... + 85075802.

It is an arithmetic number, because the mean of its divisors is an integer number (64186005312).

Almost surely, 2^{1065666115053} is an apocalyptic number.

It is an amenable number.

1065666115053 is a deficient number, since it is larger than the sum of its proper divisors (474798012435).

1065666115053 is a wasteful number, since it uses less digits than its factorization.

1065666115053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18953 (or 18950 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 45.

The spelling of 1065666115053 in words is "one trillion, sixty-five billion, six hundred sixty-six million, one hundred fifteen thousand, fifty-three".