65506651194 has 8 divisors (see below), whose sum is σ = 131013302400. Its totient is φ = 21835550396.

The previous prime is 65506651193. The next prime is 65506651207. The reversal of 65506651194 is 49115660556.

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

65506651194 is an admirable number.

It is a super-2 number, since 2×65506651194² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65506651193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5458887594 + ... + 5458887605.

It is an arithmetic number, because the mean of its divisors is an integer number (16376662800).

Almost surely, 2^65506651194 is an apocalyptic number.

65506651194 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65506651194 is a wasteful number, since it uses less digits than its factorization.

65506651194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10917775204.

The product of its (nonzero) digits is 972000, while the sum is 48.

The spelling of 65506651194 in words is "sixty-five billion, five hundred six million, six hundred fifty-one thousand, one hundred ninety-four".