220435233616 has 80 divisors (see below), whose sum is σ = 508176474624. Its totient is φ = 91591391232.

The previous prime is 220435233611. The next prime is 220435233643. The reversal of 220435233616 is 616332534022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220435233611) 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, 1273896 + ... + 1436551.

Almost surely, 2^220435233616 is an apocalyptic number.

220435233616 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

220435233616 is an abundant number, since it is smaller than the sum of its proper divisors (287741241008).

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

220435233616 is a wasteful number, since it uses less digits than its factorization.

220435233616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2710508 (or 2710502 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 37.

Adding to 220435233616 its reverse (616332534022), we get a palindrome (836767767638).

The spelling of 220435233616 in words is "two hundred twenty billion, four hundred thirty-five million, two hundred thirty-three thousand, six hundred sixteen".