65881764201 has 8 divisors (see below), whose sum is σ = 95828020704. Its totient is φ = 39928341920.

The previous prime is 65881764133. The next prime is 65881764227. The reversal of 65881764201 is 10246718856.

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 65881764201 - 2²² = 65877569897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65881764241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 998208516 + ... + 998208581.

It is an arithmetic number, because the mean of its divisors is an integer number (11978502588).

Almost surely, 2^65881764201 is an apocalyptic number.

It is an amenable number.

65881764201 is a deficient number, since it is larger than the sum of its proper divisors (29946256503).

65881764201 is a wasteful number, since it uses less digits than its factorization.

65881764201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1996417111.

The product of its (nonzero) digits is 645120, while the sum is 48.

The spelling of 65881764201 in words is "sixty-five billion, eight hundred eighty-one million, seven hundred sixty-four thousand, two hundred one".