65186120197992 has 16 divisors (see below), whose sum is σ = 162965300495040. Its totient is φ = 21728706732656.

The previous prime is 65186120197969. The next prime is 65186120198027. The reversal of 65186120197992 is 29979102168156.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1358044170768 + ... + 1358044170815.

It is an arithmetic number, because the mean of its divisors is an integer number (10185331280940).

Almost surely, 2^{65186120197992} is an apocalyptic number.

It is an amenable number.

65186120197992 is an abundant number, since it is smaller than the sum of its proper divisors (97779180297048).

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

65186120197992 is a wasteful number, since it uses less digits than its factorization.

65186120197992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2716088341592 (or 2716088341588 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 66.

The spelling of 65186120197992 in words is "sixty-five trillion, one hundred eighty-six billion, one hundred twenty million, one hundred ninety-seven thousand, nine hundred ninety-two".