1106615501561 has 8 divisors (see below), whose sum is σ = 1120731233280. Its totient is φ = 1092502468512.

The previous prime is 1106615501531. The next prime is 1106615501573. The reversal of 1106615501561 is 1651055166011.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1106615501561 - 2³⁰ = 1105541759737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1106615501521) 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 7 ways as a sum of consecutive naturals, for example, 157181 + ... + 1495973.

It is an arithmetic number, because the mean of its divisors is an integer number (140091404160).

Almost surely, 2^{1106615501561} is an apocalyptic number.

It is an amenable number.

1106615501561 is a deficient number, since it is larger than the sum of its proper divisors (14115731719).

1106615501561 is a wasteful number, since it uses less digits than its factorization.

1106615501561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349335.

The product of its (nonzero) digits is 27000, while the sum is 38.

The spelling of 1106615501561 in words is "one trillion, one hundred six billion, six hundred fifteen million, five hundred one thousand, five hundred sixty-one".