65005501001 has 4 divisors (see below), whose sum is σ = 74292001152. Its totient is φ = 55719000852.

The previous prime is 65005500977. The next prime is 65005501003. The reversal of 65005501001 is 10010550056.

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 65005501001 - 2²⁶ = 64938392137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65005501003) 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, 4643250065 + ... + 4643250078.

It is an arithmetic number, because the mean of its divisors is an integer number (18573000288).

Almost surely, 2^65005501001 is an apocalyptic number.

It is an amenable number.

65005501001 is a deficient number, since it is larger than the sum of its proper divisors (9286500151).

65005501001 is an equidigital number, since it uses as much as digits as its factorization.

65005501001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9286500150.

The product of its (nonzero) digits is 750, while the sum is 23.

The spelling of 65005501001 in words is "sixty-five billion, five million, five hundred one thousand, one".