11145666680 has 32 divisors (see below), whose sum is σ = 25140324240. Its totient is φ = 4447142400.

The previous prime is 11145666661. The next prime is 11145666683. The reversal of 11145666680 is 8666654111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11145666683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331394 + ... + 363473.

Almost surely, 2^11145666680 is an apocalyptic number.

11145666680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11145666680 is an abundant number, since it is smaller than the sum of its proper divisors (13994657560).

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

11145666680 is a wasteful number, since it uses less digits than its factorization.

11145666680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695279 (or 695275 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 44.

The spelling of 11145666680 in words is "eleven billion, one hundred forty-five million, six hundred sixty-six thousand, six hundred eighty".