1106155035561 has 4 divisors (see below), whose sum is σ = 1474873380752. Its totient is φ = 737436690372.

The previous prime is 1106155035553. The next prime is 1106155035613. The reversal of 1106155035561 is 1655305516011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1106155035561 - 2³ = 1106155035553 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1106155035541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184359172591 + ... + 184359172596.

It is an arithmetic number, because the mean of its divisors is an integer number (368718345188).

Almost surely, 2^{1106155035561} is an apocalyptic number.

It is an amenable number.

1106155035561 is a deficient number, since it is larger than the sum of its proper divisors (368718345191).

1106155035561 is an equidigital number, since it uses as much as digits as its factorization.

1106155035561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368718345190.

The product of its (nonzero) digits is 67500, while the sum is 39.

The spelling of 1106155035561 in words is "one trillion, one hundred six billion, one hundred fifty-five million, thirty-five thousand, five hundred sixty-one".