65155060661 has 8 divisors (see below), whose sum is σ = 70257062400. Its totient is φ = 60220337760.

The previous prime is 65155060657. The next prime is 65155060669. The reversal of 65155060661 is 16606055156.

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 65155060661 - 2² = 65155060657 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65155060669) 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, 41818901 + ... + 41820458.

It is an arithmetic number, because the mean of its divisors is an integer number (8782132800).

Almost surely, 2^65155060661 is an apocalyptic number.

It is an amenable number.

65155060661 is a deficient number, since it is larger than the sum of its proper divisors (5102001739).

65155060661 is a wasteful number, since it uses less digits than its factorization.

65155060661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83639419.

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 65155060661 in words is "sixty-five billion, one hundred fifty-five million, sixty thousand, six hundred sixty-one".