6650193697 has 4 divisors (see below), whose sum is σ = 7600221376. Its totient is φ = 5700166020.

The previous prime is 6650193691. The next prime is 6650193707. The reversal of 6650193697 is 7963910566.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6650193697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6650193691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 475013829 + ... + 475013842.

It is an arithmetic number, because the mean of its divisors is an integer number (1900055344).

Almost surely, 2^6650193697 is an apocalyptic number.

It is an amenable number.

6650193697 is a deficient number, since it is larger than the sum of its proper divisors (950027679).

6650193697 is an equidigital number, since it uses as much as digits as its factorization.

6650193697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950027678.

The product of its (nonzero) digits is 1837080, while the sum is 52.

The square root of 6650193697 is about 81548.7197753588. The cubic root of 6650193697 is about 1880.5206134188.

The spelling of 6650193697 in words is "six billion, six hundred fifty million, one hundred ninety-three thousand, six hundred ninety-seven".