200421442110554 has 16 divisors (see below), whose sum is σ = 343653966946176. Its totient is φ = 85876315786800.

The previous prime is 200421442110511. The next prime is 200421442110577. The reversal of 200421442110554 is 455011244124002.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1548930902 + ... + 1549060289.

It is an arithmetic number, because the mean of its divisors is an integer number (21478372934136).

Almost surely, 2^{200421442110554} is an apocalyptic number.

200421442110554 is a deficient number, since it is larger than the sum of its proper divisors (143232524835622).

200421442110554 is a wasteful number, since it uses less digits than its factorization.

200421442110554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3097995821.

The product of its (nonzero) digits is 51200, while the sum is 35.

Adding to 200421442110554 its reverse (455011244124002), we get a palindrome (655432686234556).

The spelling of 200421442110554 in words is "two hundred trillion, four hundred twenty-one billion, four hundred forty-two million, one hundred ten thousand, five hundred fifty-four".