11940540650 has 24 divisors (see below), whose sum is σ = 22513650924. Its totient is φ = 4710787200.

The previous prime is 11940540617. The next prime is 11940540653. The reversal of 11940540650 is 5604504911.

It can be written as a sum of positive squares in 6 ways, for example, as 3220903009 + 8719637641 = 56753^2 + 93379^2 .

It is a super-2 number, since 2×11940540650² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11940540650.

It is not an unprimeable number, because it can be changed into a prime (11940540653) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1632041 + ... + 1639340.

Almost surely, 2^11940540650 is an apocalyptic number.

11940540650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11940540650 is a deficient number, since it is larger than the sum of its proper divisors (10573110274).

11940540650 is a wasteful number, since it uses less digits than its factorization.

11940540650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3271466 (or 3271461 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 11940540650 in words is "eleven billion, nine hundred forty million, five hundred forty thousand, six hundred fifty".