448665566844 has 24 divisors (see below), whose sum is σ = 1142057806848. Its totient is φ = 135959262640.

The previous prime is 448665566827. The next prime is 448665566851.

It is a happy number.

448665566844 is nontrivially palindromic in base 10.

It is a hoax number, since the sum of its digits (66) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1699490652 + ... + 1699490915.

It is an arithmetic number, because the mean of its divisors is an integer number (47585741952).

Almost surely, 2^448665566844 is an apocalyptic number.

448665566844 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

448665566844 is an abundant number, since it is smaller than the sum of its proper divisors (693392240004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

448665566844 is a wasteful number, since it uses less digits than its factorization.

448665566844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3398981585 (or 3398981583 counting only the distinct ones).

The product of its digits is 530841600, while the sum is 66.

The spelling of 448665566844 in words is "four hundred forty-eight billion, six hundred sixty-five million, five hundred sixty-six thousand, eight hundred forty-four".