65571674201 has 4 divisors (see below), whose sum is σ = 71532735504. Its totient is φ = 59610612900.

The previous prime is 65571674171. The next prime is 65571674209. The reversal of 65571674201 is 10247617556.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65571674201 - 2¹⁰ = 65571673177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65571674209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2980530635 + ... + 2980530656.

It is an arithmetic number, because the mean of its divisors is an integer number (17883183876).

Almost surely, 2^65571674201 is an apocalyptic number.

It is an amenable number.

65571674201 is a deficient number, since it is larger than the sum of its proper divisors (5961061303).

65571674201 is a wasteful number, since it uses less digits than its factorization.

65571674201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5961061302.

The product of its (nonzero) digits is 352800, while the sum is 44.

The spelling of 65571674201 in words is "sixty-five billion, five hundred seventy-one million, six hundred seventy-four thousand, two hundred one".