11720144475 has 96 divisors (see below), whose sum is σ = 23281218240. Its totient is φ = 5746360320.

The previous prime is 11720144411. The next prime is 11720144561. The reversal of 11720144475 is 57444102711.

11720144475 is a `hidden beast` number, since 1 + 1 + 7 + 201 + 4 + 447 + 5 = 666.

It is not a de Polignac number, because 11720144475 - 2⁶ = 11720144411 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2252577 + ... + 2257773.

It is an arithmetic number, because the mean of its divisors is an integer number (242512690).

Almost surely, 2^11720144475 is an apocalyptic number.

11720144475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11720144475 is a deficient number, since it is larger than the sum of its proper divisors (11561073765).

11720144475 is a wasteful number, since it uses less digits than its factorization.

11720144475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5486 (or 5475 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The spelling of 11720144475 in words is "eleven billion, seven hundred twenty million, one hundred forty-four thousand, four hundred seventy-five".