11172075650 has 24 divisors (see below), whose sum is σ = 21286895364. Its totient is φ = 4359833600.

The previous prime is 11172075613. The next prime is 11172075679. The reversal of 11172075650 is 5657027111.

It can be written as a sum of positive squares in 6 ways, for example, as 2122168489 + 9049907161 = 46067^2 + 95131^2 .

It is a super-3 number, since 3×11172075650³ (a number of 31 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11172075650.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2722847 + ... + 2726946.

Almost surely, 2^11172075650 is an apocalyptic number.

11172075650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11172075650 is a deficient number, since it is larger than the sum of its proper divisors (10114819714).

11172075650 is a wasteful number, since it uses less digits than its factorization.

11172075650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5449846 (or 5449841 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 35.

The spelling of 11172075650 in words is "eleven billion, one hundred seventy-two million, seventy-five thousand, six hundred fifty".