11507556806851 has 12 divisors (see below), whose sum is σ = 13389933524448. Its totient is φ = 9860973432912.

The previous prime is 11507556806843. The next prime is 11507556806891. The reversal of 11507556806851 is 15860865570511.

It is not a de Polignac number, because 11507556806851 - 2³ = 11507556806843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11507556806891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31323696 + ... + 31688941.

It is an arithmetic number, because the mean of its divisors is an integer number (1115827793704).

Almost surely, 2^{11507556806851} is an apocalyptic number.

11507556806851 is a deficient number, since it is larger than the sum of its proper divisors (1882376717597).

11507556806851 is an equidigital number, since it uses as much as digits as its factorization.

11507556806851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63016378 (or 63016371 counting only the distinct ones).

The product of its (nonzero) digits is 10080000, while the sum is 58.

The spelling of 11507556806851 in words is "eleven trillion, five hundred seven billion, five hundred fifty-six million, eight hundred six thousand, eight hundred fifty-one".