11551106777 has 12 divisors (see below), whose sum is σ = 13438779876. Its totient is φ = 9899638560.

The previous prime is 11551106771. The next prime is 11551106863. The reversal of 11551106777 is 77760115511.

It can be written as a sum of positive squares in 2 ways, for example, as 1930635721 + 9620471056 = 43939^2 + 98084^2 .

It is not a de Polignac number, because 11551106777 - 2⁴ = 11551106761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11551106771) 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, 620627 + ... + 638967.

It is an arithmetic number, because the mean of its divisors is an integer number (1119898323).

Almost surely, 2^11551106777 is an apocalyptic number.

It is an amenable number.

11551106777 is a deficient number, since it is larger than the sum of its proper divisors (1887673099).

11551106777 is a wasteful number, since it uses less digits than its factorization.

11551106777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31208 (or 31201 counting only the distinct ones).

The product of its (nonzero) digits is 51450, while the sum is 41.

The spelling of 11551106777 in words is "eleven billion, five hundred fifty-one million, one hundred six thousand, seven hundred seventy-seven".