1161018541774 has 16 divisors (see below), whose sum is σ = 2143418846688. Its totient is φ = 459304038432.

The previous prime is 1161018541699. The next prime is 1161018541783. The reversal of 1161018541774 is 4771458101611.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3189611197 + ... + 3189611560.

It is an arithmetic number, because the mean of its divisors is an integer number (133963677918).

Almost surely, 2^{1161018541774} is an apocalyptic number.

1161018541774 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1161018541774 is a deficient number, since it is larger than the sum of its proper divisors (982400304914).

1161018541774 is a wasteful number, since it uses less digits than its factorization.

1161018541774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6379222779.

The product of its (nonzero) digits is 188160, while the sum is 46.

The spelling of 1161018541774 in words is "one trillion, one hundred sixty-one billion, eighteen million, five hundred forty-one thousand, seven hundred seventy-four".