1065155506497 has 6 divisors (see below), whose sum is σ = 1538557953842. Its totient is φ = 710103670992.

The previous prime is 1065155506487. The next prime is 1065155506523. The reversal of 1065155506497 is 7946055515601.

It is a happy number.

1065155506497 is a `hidden beast` number, since 1 + 0 + 6 + 51 + 55 + 50 + 6 + 497 = 666.

It can be written as a sum of positive squares in only one way, i.e., 842046652161 + 223108854336 = 917631^2 + 472344^2 .

It is not a de Polignac number, because 1065155506497 - 2¹⁰ = 1065155505473 is a prime.

It is a super-2 number, since 2×1065155506497² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1065155506487) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59175305908 + ... + 59175305925.

Almost surely, 2^{1065155506497} is an apocalyptic number.

It is an amenable number.

1065155506497 is a deficient number, since it is larger than the sum of its proper divisors (473402447345).

1065155506497 is a wasteful number, since it uses less digits than its factorization.

1065155506497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118350611839 (or 118350611836 counting only the distinct ones).

The product of its (nonzero) digits is 5670000, while the sum is 54.

The spelling of 1065155506497 in words is "one trillion, sixty-five billion, one hundred fifty-five million, five hundred six thousand, four hundred ninety-seven".