1156651100011 has 4 divisors (see below), whose sum is σ = 1261801200024. Its totient is φ = 1051501000000.

The previous prime is 1156651100009. The next prime is 1156651100027. The reversal of 1156651100011 is 1100011566511.

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

It is not a de Polignac number, because 1156651100011 - 2¹ = 1156651100009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1156651100071) 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, 52575049990 + ... + 52575050011.

It is an arithmetic number, because the mean of its divisors is an integer number (315450300006).

Almost surely, 2^{1156651100011} is an apocalyptic number.

1156651100011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1156651100011 is a deficient number, since it is larger than the sum of its proper divisors (105150100013).

1156651100011 is a wasteful number, since it uses less digits than its factorization.

1156651100011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105150100012.

The product of its (nonzero) digits is 900, while the sum is 28.

Adding to 1156651100011 its reverse (1100011566511), we get a palindrome (2256662666522).

The spelling of 1156651100011 in words is "one trillion, one hundred fifty-six billion, six hundred fifty-one million, one hundred thousand, eleven".