9906419566 has 16 divisors (see below), whose sum is σ = 14891040864. Its totient is φ = 4942751904.

The previous prime is 9906419563. The next prime is 9906419569. The reversal of 9906419566 is 6659146099.

It is an interprime number because it is at equal distance from previous prime (9906419563) and next prime (9906419569).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9906419563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2466576 + ... + 2470588.

It is an arithmetic number, because the mean of its divisors is an integer number (930690054).

Almost surely, 2^9906419566 is an apocalyptic number.

9906419566 is a deficient number, since it is larger than the sum of its proper divisors (4984621298).

9906419566 is a wasteful number, since it uses less digits than its factorization.

9906419566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6315.

The product of its (nonzero) digits is 3149280, while the sum is 55.

The square root of 9906419566 is about 99530.9980156936. The cubic root of 9906419566 is about 2147.6931858880.

The spelling of 9906419566 in words is "nine billion, nine hundred six million, four hundred nineteen thousand, five hundred sixty-six".