11551715117011 has 4 divisors (see below), whose sum is σ = 11553683382400. Its totient is φ = 11549746851624.

The previous prime is 11551715117003. The next prime is 11551715117017. The reversal of 11551715117011 is 11071151715511.

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

It is a cyclic number.

It is not a de Polignac number, because 11551715117011 - 2³ = 11551715117003 is a prime.

It is a super-2 number, since 2×11551715117011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11551715117017) 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, 984123891 + ... + 984135628.

It is an arithmetic number, because the mean of its divisors is an integer number (2888420845600).

Almost surely, 2^{11551715117011} is an apocalyptic number.

11551715117011 is a deficient number, since it is larger than the sum of its proper divisors (1968265389).

11551715117011 is an equidigital number, since it uses as much as digits as its factorization.

11551715117011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1968265388.

The product of its (nonzero) digits is 6125, while the sum is 37.

The spelling of 11551715117011 in words is "eleven trillion, five hundred fifty-one billion, seven hundred fifteen million, one hundred seventeen thousand, eleven".