11199545671 has 2 divisors, whose sum is σ = 11199545672. Its totient is φ = 11199545670.

The previous prime is 11199545663. The next prime is 11199545681. The reversal of 11199545671 is 17654599111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11199545671 - 2³ = 11199545663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11199545681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5599772835 + 5599772836.

It is an arithmetic number, because the mean of its divisors is an integer number (5599772836).

Almost surely, 2^11199545671 is an apocalyptic number.

11199545671 is a deficient number, since it is larger than the sum of its proper divisors (1).

11199545671 is an equidigital number, since it uses as much as digits as its factorization.

11199545671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 340200, while the sum is 49.

The spelling of 11199545671 in words is "eleven billion, one hundred ninety-nine million, five hundred forty-five thousand, six hundred seventy-one".