1161716516511 has 8 divisors (see below), whose sum is σ = 1548964594224. Its totient is φ = 774473058240.

The previous prime is 1161716516479. The next prime is 1161716516531. The reversal of 1161716516511 is 1156156171611.

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

It is not a de Polignac number, because 1161716516511 - 2⁵ = 1161716516479 is a prime.

It is a super-2 number, since 2×1161716516511² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161716516531) 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, 517870 + ... + 1609851.

It is an arithmetic number, because the mean of its divisors is an integer number (193620574278).

Almost surely, 2^{1161716516511} is an apocalyptic number.

1161716516511 is a deficient number, since it is larger than the sum of its proper divisors (387248077713).

1161716516511 is a wasteful number, since it uses less digits than its factorization.

1161716516511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2309721.

The product of its digits is 37800, while the sum is 42.

The spelling of 1161716516511 in words is "one trillion, one hundred sixty-one billion, seven hundred sixteen million, five hundred sixteen thousand, five hundred eleven".