1165605062157 has 12 divisors (see below), whose sum is σ = 1683662782620. Its totient is φ = 777064952448.

The previous prime is 1165605062053. The next prime is 1165605062161. The reversal of 1165605062157 is 7512605065611.

It is a happy number.

1165605062157 is a `hidden beast` number, since 1 + 1 + 65 + 60 + 506 + 21 + 5 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 101961430596 + 1063643631561 = 319314^2 + 1031331^2 .

It is not a de Polignac number, because 1165605062157 - 2¹⁸ = 1165604800013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165605062357) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1473343 + ... + 2121779.

It is an arithmetic number, because the mean of its divisors is an integer number (140305231885).

Almost surely, 2^{1165605062157} is an apocalyptic number.

It is an amenable number.

1165605062157 is a deficient number, since it is larger than the sum of its proper divisors (518057720463).

1165605062157 is a wasteful number, since it uses less digits than its factorization.

1165605062157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848172 (or 848169 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 45.

The spelling of 1165605062157 in words is "one trillion, one hundred sixty-five billion, six hundred five million, sixty-two thousand, one hundred fifty-seven".