220050145455523 has 32 divisors (see below), whose sum is σ = 234567061747200. Its totient is φ = 205978428539136.

The previous prime is 220050145455487. The next prime is 220050145455551. The reversal of 220050145455523 is 325554541050022.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220050145455523 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220050145455523.

It is not an unprimeable number, because it can be changed into a prime (220050145855523) 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, 1371829161 + ... + 1371989557.

It is an arithmetic number, because the mean of its divisors is an integer number (7330220679600).

Almost surely, 2^{220050145455523} is an apocalyptic number.

220050145455523 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

220050145455523 is a deficient number, since it is larger than the sum of its proper divisors (14516916291677).

220050145455523 is a wasteful number, since it uses less digits than its factorization.

220050145455523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165051.

The product of its (nonzero) digits is 1200000, while the sum is 43.

The spelling of 220050145455523 in words is "two hundred twenty trillion, fifty billion, one hundred forty-five million, four hundred fifty-five thousand, five hundred twenty-three".