1265065654601 has 8 divisors (see below), whose sum is σ = 1456342527360. Its totient is φ = 1076427083808.

The previous prime is 1265065654579. The next prime is 1265065654609. The reversal of 1265065654601 is 1064565605621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1265065654601 - 2⁶ = 1265065654537 is a prime.

It is a super-2 number, since 2×1265065654601² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1265065654609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 659574461 + ... + 659576378.

It is an arithmetic number, because the mean of its divisors is an integer number (182042815920).

Almost surely, 2^{1265065654601} is an apocalyptic number.

It is an amenable number.

1265065654601 is a deficient number, since it is larger than the sum of its proper divisors (191276872759).

1265065654601 is a wasteful number, since it uses less digits than its factorization.

1265065654601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319150983.

The product of its (nonzero) digits is 1296000, while the sum is 47.

The spelling of 1265065654601 in words is "one trillion, two hundred sixty-five billion, sixty-five million, six hundred fifty-four thousand, six hundred one".