1161011105006 has 4 divisors (see below), whose sum is σ = 1741516657512. Its totient is φ = 580505552502.

The previous prime is 1161011104993. The next prime is 1161011105047. The reversal of 1161011105006 is 6005011101611.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 290252776250 + ... + 290252776253.

It is an arithmetic number, because the mean of its divisors is an integer number (435379164378).

Almost surely, 2^{1161011105006} is an apocalyptic number.

1161011105006 is a deficient number, since it is larger than the sum of its proper divisors (580505552506).

1161011105006 is an equidigital number, since it uses as much as digits as its factorization.

1161011105006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580505552505.

The product of its (nonzero) digits is 180, while the sum is 23.

Adding to 1161011105006 its reverse (6005011101611), we get a palindrome (7166022206617).

The spelling of 1161011105006 in words is "one trillion, one hundred sixty-one billion, eleven million, one hundred five thousand, six".