1165662948771 has 12 divisors (see below), whose sum is σ = 1683769340448. Its totient is φ = 777092954064.

The previous prime is 1165662948763. The next prime is 1165662948773. The reversal of 1165662948771 is 1778492665611.

1165662948771 is a `hidden beast` number, since 1 + 1 + 6 + 5 + 66 + 29 + 487 + 71 = 666.

It is not a de Polignac number, because 1165662948771 - 2³ = 1165662948763 is a prime.

It is a super-2 number, since 2×1165662948771² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1165662948699 and 1165662948708.

It is not an unprimeable number, because it can be changed into a prime (1165662948773) 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, 826380 + ... + 1736153.

It is an arithmetic number, because the mean of its divisors is an integer number (140314111704).

Almost surely, 2^{1165662948771} is an apocalyptic number.

1165662948771 is a deficient number, since it is larger than the sum of its proper divisors (518106391677).

1165662948771 is a wasteful number, since it uses less digits than its factorization.

1165662948771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2613082 (or 2613079 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 63.

The spelling of 1165662948771 in words is "one trillion, one hundred sixty-five billion, six hundred sixty-two million, nine hundred forty-eight thousand, seven hundred seventy-one".