11556135713851 has 2 divisors, whose sum is σ = 11556135713852. Its totient is φ = 11556135713850.

The previous prime is 11556135713797. The next prime is 11556135713887. The reversal of 11556135713851 is 15831753165511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11556135713851 - 2²³ = 11556127325243 is a prime.

It is a super-2 number, since 2×11556135713851² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11556135713891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5778067856925 + 5778067856926.

It is an arithmetic number, because the mean of its divisors is an integer number (5778067856926).

Almost surely, 2^{11556135713851} is an apocalyptic number.

11556135713851 is a deficient number, since it is larger than the sum of its proper divisors (1).

11556135713851 is an equidigital number, since it uses as much as digits as its factorization.

11556135713851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1890000, while the sum is 52.

The spelling of 11556135713851 in words is "eleven trillion, five hundred fifty-six billion, one hundred thirty-five million, seven hundred thirteen thousand, eight hundred fifty-one".