11855263144770 has 24 divisors (see below), whose sum is σ = 30823684176636. Its totient is φ = 3161403505248.

The previous prime is 11855263144763. The next prime is 11855263144771. The reversal of 11855263144770 is 7744136255811.

11855263144770 is a `hidden beast` number, since 1 + 1 + 8 + 5 + 526 + 3 + 1 + 4 + 47 + 70 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10595591377569 + 1259671767201 = 3255087^2 + 1122351^2 .

It is not an unprimeable number, because it can be changed into a prime (11855263144771) 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, 65862572937 + ... + 65862573116.

Almost surely, 2^{11855263144770} is an apocalyptic number.

11855263144770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11855263144770 is an abundant number, since it is smaller than the sum of its proper divisors (18968421031866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11855263144770 is a wasteful number, since it uses less digits than its factorization.

11855263144770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131725146066 (or 131725146063 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 54.

The spelling of 11855263144770 in words is "eleven trillion, eight hundred fifty-five billion, two hundred sixty-three million, one hundred forty-four thousand, seven hundred seventy".