2243665199064 has 128 divisors (see below), whose sum is σ = 6120145152000. Its totient is φ = 682824038400.

The previous prime is 2243665199063. The next prime is 2243665199129. The reversal of 2243665199064 is 4609915663422.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 2243665198995 and 2243665199013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243665199063) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3077482 + ... + 3736070.

It is an arithmetic number, because the mean of its divisors is an integer number (47813634000).

Almost surely, 2^{2243665199064} is an apocalyptic number.

2243665199064 is a gapful number since it is divisible by the number (24) 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 2243665199064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3060072576000).

2243665199064 is an abundant number, since it is smaller than the sum of its proper divisors (3876479952936).

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

2243665199064 is a wasteful number, since it uses less digits than its factorization.

2243665199064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658889 (or 658885 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 57.

The spelling of 2243665199064 in words is "two trillion, two hundred forty-three billion, six hundred sixty-five million, one hundred ninety-nine thousand, sixty-four".