11864707155 has 48 divisors (see below), whose sum is σ = 23825430720. Its totient is φ = 5349556224.

The previous prime is 11864707109. The next prime is 11864707171. The reversal of 11864707155 is 55170746811.

It is not a de Polignac number, because 11864707155 - 2⁷ = 11864707027 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 11864707155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 234990 + ... + 280979.

It is an arithmetic number, because the mean of its divisors is an integer number (496363140).

Almost surely, 2^11864707155 is an apocalyptic number.

11864707155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11864707155 is an abundant number, since it is smaller than the sum of its proper divisors (11960723565).

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

11864707155 is a wasteful number, since it uses less digits than its factorization.

11864707155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516060 (or 516057 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 45.

The spelling of 11864707155 in words is "eleven billion, eight hundred sixty-four million, seven hundred seven thousand, one hundred fifty-five".