1161716671 has 12 divisors (see below), whose sum is σ = 1183602792. Its totient is φ = 1140215616.

The previous prime is 1161716669. The next prime is 1161716687. The reversal of 1161716671 is 1766171611.

It is not a de Polignac number, because 1161716671 - 2¹ = 1161716669 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1161716671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161716651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1475740 + ... + 1476526.

It is an arithmetic number, because the mean of its divisors is an integer number (98633566).

Almost surely, 2^1161716671 is an apocalyptic number.

1161716671 is a deficient number, since it is larger than the sum of its proper divisors (21886121).

1161716671 is an frugal number, since it uses more digits than its factorization.

1161716671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210 (or 1137 counting only the distinct ones).

The product of its digits is 10584, while the sum is 37.

The square root of 1161716671 is about 34083.9650128913. The cubic root of 1161716671 is about 1051.2356340801.

The spelling of 1161716671 in words is "one billion, one hundred sixty-one million, seven hundred sixteen thousand, six hundred seventy-one".