65068092991 has 8 divisors (see below), whose sum is σ = 71207300304. Its totient is φ = 58966206720.

The previous prime is 65068092919. The next prime is 65068092997. The reversal of 65068092991 is 19929086056.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 65068092991 - 2¹⁹ = 65067568703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65068092997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9326610 + ... + 9333583.

It is an arithmetic number, because the mean of its divisors is an integer number (8900912538).

Almost surely, 2^65068092991 is an apocalyptic number.

65068092991 is a deficient number, since it is larger than the sum of its proper divisors (6139207313).

65068092991 is a wasteful number, since it uses less digits than its factorization.

65068092991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18660521.

The product of its (nonzero) digits is 2099520, while the sum is 55.

The spelling of 65068092991 in words is "sixty-five billion, sixty-eight million, ninety-two thousand, nine hundred ninety-one".