66198002611 has 8 divisors (see below), whose sum is σ = 71522376464. Its totient is φ = 60906803040.

The previous prime is 66198002603. The next prime is 66198002681. The reversal of 66198002611 is 11620089166.

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

It is a cyclic number.

It is not a de Polignac number, because 66198002611 - 2³ = 66198002603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66198002681) 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, 8289420 + ... + 8297401.

It is an arithmetic number, because the mean of its divisors is an integer number (8940297058).

Almost surely, 2^66198002611 is an apocalyptic number.

66198002611 is a deficient number, since it is larger than the sum of its proper divisors (5324373853).

66198002611 is a wasteful number, since it uses less digits than its factorization.

66198002611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16587141.

The product of its (nonzero) digits is 31104, while the sum is 40.

The spelling of 66198002611 in words is "sixty-six billion, one hundred ninety-eight million, two thousand, six hundred eleven".