424223666000 has 80 divisors (see below), whose sum is σ = 1027361387520. Its totient is φ = 169426678400.

The previous prime is 424223665967. The next prime is 424223666021. The reversal of 424223666000 is 666322424.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1130081 + ... + 1457919.

It is an arithmetic number, because the mean of its divisors is an integer number (12842017344).

Almost surely, 2^424223666000 is an apocalyptic number.

424223666000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 424223666000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (513680693760).

424223666000 is an abundant number, since it is smaller than the sum of its proper divisors (603137721520).

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

424223666000 is a wasteful number, since it uses less digits than its factorization.

424223666000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328509 (or 328493 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 424223666000 its reverse (666322424), we get a palindrome (424889988424).

The spelling of 424223666000 in words is "four hundred twenty-four billion, two hundred twenty-three million, six hundred sixty-six thousand".