11650128072 has 32 divisors (see below), whose sum is σ = 31773077280. Its totient is φ = 3530341760.

The previous prime is 11650128013. The next prime is 11650128143. The reversal of 11650128072 is 27082105611.

11650128072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22064373 + ... + 22064900.

It is an arithmetic number, because the mean of its divisors is an integer number (992908665).

Almost surely, 2^11650128072 is an apocalyptic number.

11650128072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11650128072 is an abundant number, since it is smaller than the sum of its proper divisors (20122949208).

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

11650128072 is a wasteful number, since it uses less digits than its factorization.

11650128072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44129293 (or 44129289 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 33.

The spelling of 11650128072 in words is "eleven billion, six hundred fifty million, one hundred twenty-eight thousand, seventy-two".