220552523450 has 384 divisors, whose sum is σ = 549016289280. Its totient is φ = 64049356800.

The previous prime is 220552523377. The next prime is 220552523483. The reversal of 220552523450 is 54325255022.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 220552523450.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 704640494 + ... + 704640806.

It is an arithmetic number, because the mean of its divisors is an integer number (1429729920).

Almost surely, 2^220552523450 is an apocalyptic number.

220552523450 is an abundant number, since it is smaller than the sum of its proper divisors (328463765830).

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

220552523450 is a wasteful number, since it uses less digits than its factorization.

220552523450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662 (or 657 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 35.

Adding to 220552523450 its reverse (54325255022), we get a palindrome (274877778472).

The spelling of 220552523450 in words is "two hundred twenty billion, five hundred fifty-two million, five hundred twenty-three thousand, four hundred fifty".