11680671418 has 8 divisors (see below), whose sum is σ = 18868776948. Its totient is φ = 5391079104.

The previous prime is 11680671413. The next prime is 11680671433. The reversal of 11680671418 is 81417608611.

It can be written as a sum of positive squares in 2 ways, for example, as 11680637929 + 33489 = 108077^2 + 183^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (11680671413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224628271 + ... + 224628322.

Almost surely, 2^11680671418 is an apocalyptic number.

11680671418 is a deficient number, since it is larger than the sum of its proper divisors (7188105530).

11680671418 is a wasteful number, since it uses less digits than its factorization.

11680671418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449256608.

The product of its (nonzero) digits is 64512, while the sum is 43.

The spelling of 11680671418 in words is "eleven billion, six hundred eighty million, six hundred seventy-one thousand, four hundred eighteen".