650666983197 has 32 divisors (see below), whose sum is σ = 1096862459904. Its totient is φ = 333248126400.

The previous prime is 650666983193. The next prime is 650666983223. The reversal of 650666983197 is 791389666056.

It is not a de Polignac number, because 650666983197 - 2² = 650666983193 is a prime.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650666983193) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19819798 + ... + 19852599.

It is an arithmetic number, because the mean of its divisors is an integer number (34276951872).

Almost surely, 2^650666983197 is an apocalyptic number.

It is an amenable number.

650666983197 is a deficient number, since it is larger than the sum of its proper divisors (446195476707).

650666983197 is a wasteful number, since it uses less digits than its factorization.

650666983197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39672489.

The product of its (nonzero) digits is 88179840, while the sum is 66.

The spelling of 650666983197 in words is "six hundred fifty billion, six hundred sixty-six million, nine hundred eighty-three thousand, one hundred ninety-seven".