4500221015440 has 80 divisors (see below), whose sum is σ = 11123926380288. Its totient is φ = 1689336416768.

The previous prime is 4500221015327. The next prime is 4500221015447. The reversal of 4500221015440 is 445101220054.

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

It is a junction number, because it is equal to n+sod(n) for n = 4500221015399 and 4500221015408.

It is not an unprimeable number, because it can be changed into a prime (4500221015447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22975804 + ... + 23170843.

Almost surely, 2^{4500221015440} is an apocalyptic number.

4500221015440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4500221015440 is an abundant number, since it is smaller than the sum of its proper divisors (6623705364848).

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

4500221015440 is a wasteful number, since it uses less digits than its factorization.

4500221015440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46146736 (or 46146730 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 4500221015440 its reverse (445101220054), we get a palindrome (4945322235494).

The spelling of 4500221015440 in words is "four trillion, five hundred billion, two hundred twenty-one million, fifteen thousand, four hundred forty".