66198002 has 24 divisors (see below), whose sum is σ = 111809964. Its totient is φ = 29218464.

The previous prime is 66197977. The next prime is 66198019. The reversal of 66198002 is 20089166.

It can be written as a sum of positive squares in 2 ways, for example, as 65918161 + 279841 = 8119^2 + 529^2 .

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 66198002.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11348 + ... + 16160.

Almost surely, 2^66198002 is an apocalyptic number.

66198002 is a deficient number, since it is larger than the sum of its proper divisors (45611962).

66198002 is a wasteful number, since it uses less digits than its factorization.

66198002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4874 (or 4851 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 66198002 is about 8136.2154592906. The cubic root of 66198002 is about 404.5277266864.

The spelling of 66198002 in words is "sixty-six million, one hundred ninety-eight thousand, two".