1071654320065 has 64 divisors (see below), whose sum is σ = 1487609266176. Its totient is φ = 725966099712.

The previous prime is 1071654320029. The next prime is 1071654320117. The reversal of 1071654320065 is 5600234561701.

It is not a de Polignac number, because 1071654320065 - 2²¹ = 1071652222913 is a prime.

It is a super-2 number, since 2×1071654320065² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 694525684 + ... + 694527226.

It is an arithmetic number, because the mean of its divisors is an integer number (23243894784).

Almost surely, 2^{1071654320065} is an apocalyptic number.

It is an amenable number.

1071654320065 is a deficient number, since it is larger than the sum of its proper divisors (415954946111).

1071654320065 is a wasteful number, since it uses less digits than its factorization.

1071654320065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2398.

The product of its (nonzero) digits is 151200, while the sum is 40.

Adding to 1071654320065 its reverse (5600234561701), we get a palindrome (6671888881766).

The spelling of 1071654320065 in words is "one trillion, seventy-one billion, six hundred fifty-four million, three hundred twenty thousand, sixty-five".