65790191195 has 4 divisors (see below), whose sum is σ = 78948229440. Its totient is φ = 52632152952.

The previous prime is 65790191191. The next prime is 65790191209. The reversal of 65790191195 is 59119109756.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65790191195 - 2² = 65790191191 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65790191191) 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, 6579019115 + ... + 6579019124.

It is an arithmetic number, because the mean of its divisors is an integer number (19737057360).

Almost surely, 2^65790191195 is an apocalyptic number.

65790191195 is a deficient number, since it is larger than the sum of its proper divisors (13158038245).

65790191195 is a wasteful number, since it uses less digits than its factorization.

65790191195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13158038244.

The product of its (nonzero) digits is 765450, while the sum is 53.

The spelling of 65790191195 in words is "sixty-five billion, seven hundred ninety million, one hundred ninety-one thousand, one hundred ninety-five".