465444005446661 has 4 divisors (see below), whose sum is σ = 471051764548512. Its totient is φ = 459836246344812.

The previous prime is 465444005446649. The next prime is 465444005446699. The reversal of 465444005446661 is 166644500444564.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-465444005446661 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 465444005446661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (465444005446061) 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, 2803879550801 + ... + 2803879550966.

It is an arithmetic number, because the mean of its divisors is an integer number (117762941137128).

Almost surely, 2^{465444005446661} is an apocalyptic number.

It is an amenable number.

465444005446661 is a deficient number, since it is larger than the sum of its proper divisors (5607759101851).

465444005446661 is an equidigital number, since it uses as much as digits as its factorization.

465444005446661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5607759101850.

The product of its (nonzero) digits is 132710400, while the sum is 59.

The spelling of 465444005446661 in words is "four hundred sixty-five trillion, four hundred forty-four billion, five million, four hundred forty-six thousand, six hundred sixty-one".