1161012556006 has 4 divisors (see below), whose sum is σ = 1741518834012. Its totient is φ = 580506278002.

The previous prime is 1161012555959. The next prime is 1161012556021. The reversal of 1161012556006 is 6006552101611.

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, 290253139000 + ... + 290253139003.

It is an arithmetic number, because the mean of its divisors is an integer number (435379708503).

Almost surely, 2^{1161012556006} is an apocalyptic number.

1161012556006 is a deficient number, since it is larger than the sum of its proper divisors (580506278006).

1161012556006 is an equidigital number, since it uses as much as digits as its factorization.

1161012556006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580506278005.

The product of its (nonzero) digits is 10800, while the sum is 34.

Adding to 1161012556006 its reverse (6006552101611), we get a palindrome (7167564657617).

The spelling of 1161012556006 in words is "one trillion, one hundred sixty-one billion, twelve million, five hundred fifty-six thousand, six".