11051661499 has 2 divisors, whose sum is σ = 11051661500. Its totient is φ = 11051661498.

The previous prime is 11051661487. The next prime is 11051661521. The reversal of 11051661499 is 99416615011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11051661499 - 2²¹ = 11049564347 is a prime.

It is not a weakly prime, because it can be changed into another prime (11051661449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5525830749 + 5525830750.

It is an arithmetic number, because the mean of its divisors is an integer number (5525830750).

Almost surely, 2^11051661499 is an apocalyptic number.

11051661499 is a deficient number, since it is larger than the sum of its proper divisors (1).

11051661499 is an equidigital number, since it uses as much as digits as its factorization.

11051661499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 43.

The spelling of 11051661499 in words is "eleven billion, fifty-one million, six hundred sixty-one thousand, four hundred ninety-nine".