1161156110101 has 16 divisors (see below), whose sum is σ = 1316579824000. Its totient is φ = 1015200641088.

The previous prime is 1161156110099. The next prime is 1161156110113. The reversal of 1161156110101 is 1010116511611.

It is a cyclic number.

It is not a de Polignac number, because 1161156110101 - 2¹ = 1161156110099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161156110171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 613375 + ... + 1642723.

It is an arithmetic number, because the mean of its divisors is an integer number (82286239000).

Almost surely, 2^{1161156110101} is an apocalyptic number.

It is an amenable number.

1161156110101 is a deficient number, since it is larger than the sum of its proper divisors (155423713899).

1161156110101 is a wasteful number, since it uses less digits than its factorization.

1161156110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033948.

The product of its (nonzero) digits is 180, while the sum is 25.

The spelling of 1161156110101 in words is "one trillion, one hundred sixty-one billion, one hundred fifty-six million, one hundred ten thousand, one hundred one".