220545051400 has 48 divisors (see below), whose sum is σ = 512836082640. Its totient is φ = 88206177600.

The previous prime is 220545051379. The next prime is 220545051409. The reversal of 220545051400 is 4150545022.

It is not an unprimeable number, because it can be changed into a prime (220545051409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1503315 + ... + 1643485.

It is an arithmetic number, because the mean of its divisors is an integer number (10684085055).

Almost surely, 2^220545051400 is an apocalyptic number.

220545051400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220545051400 is an abundant number, since it is smaller than the sum of its proper divisors (292291031240).

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

220545051400 is a wasteful number, since it uses less digits than its factorization.

220545051400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148054 (or 148045 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

Adding to 220545051400 its reverse (4150545022), we get a palindrome (224695596422).

The spelling of 220545051400 in words is "two hundred twenty billion, five hundred forty-five million, fifty-one thousand, four hundred".