11529870816 has 24 divisors (see below), whose sum is σ = 30265911144. Its totient is φ = 3843290240.

The previous prime is 11529870809. The next prime is 11529870839. The reversal of 11529870816 is 61807892511.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60051315 + ... + 60051506.

It is an arithmetic number, because the mean of its divisors is an integer number (1261079631).

Almost surely, 2^11529870816 is an apocalyptic number.

11529870816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11529870816 is an abundant number, since it is smaller than the sum of its proper divisors (18736040328).

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

11529870816 is a wasteful number, since it uses less digits than its factorization.

11529870816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120102834 (or 120102826 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 48.

The spelling of 11529870816 in words is "eleven billion, five hundred twenty-nine million, eight hundred seventy thousand, eight hundred sixteen".