220672102443540 has 192 divisors, whose sum is σ = 689567310286848. Its totient is φ = 52268848499200.

The previous prime is 220672102443509. The next prime is 220672102443547. The reversal of 220672102443540 is 45344201276022.

It is a junction number, because it is equal to n+sod(n) for n = 220672102443492 and 220672102443501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220672102443547) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12149230 + ... + 24268250.

It is an arithmetic number, because the mean of its divisors is an integer number (3591496407744).

Almost surely, 2^{220672102443540} is an apocalyptic number.

220672102443540 is a gapful number since it is divisible by the number (20) 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 220672102443540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (344783655143424).

220672102443540 is an abundant number, since it is smaller than the sum of its proper divisors (468895207843308).

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

220672102443540 is a wasteful number, since it uses less digits than its factorization.

220672102443540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12119678 (or 12119676 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 42.

The spelling of 220672102443540 in words is "two hundred twenty trillion, six hundred seventy-two billion, one hundred two million, four hundred forty-three thousand, five hundred forty".