11520953785 has 16 divisors (see below), whose sum is σ = 15087606912. Its totient is φ = 8375747200.

The previous prime is 11520953783. The next prime is 11520953809. The reversal of 11520953785 is 58735902511.

It is not a de Polignac number, because 11520953785 - 2¹ = 11520953783 is a prime.

It is a super-2 number, since 2×11520953785² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11520953783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115020 + ... + 190450.

It is an arithmetic number, because the mean of its divisors is an integer number (942975432).

Almost surely, 2^11520953785 is an apocalyptic number.

It is an amenable number.

11520953785 is a deficient number, since it is larger than the sum of its proper divisors (3566653127).

11520953785 is a wasteful number, since it uses less digits than its factorization.

11520953785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78224.

The product of its (nonzero) digits is 378000, while the sum is 46.

The spelling of 11520953785 in words is "eleven billion, five hundred twenty million, nine hundred fifty-three thousand, seven hundred eighty-five".