200145405020 has 24 divisors (see below), whose sum is σ = 458514928368. Its totient is φ = 72780147200.

The previous prime is 200145404969. The next prime is 200145405037. The reversal of 200145405020 is 20504541002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454875701 + ... + 454876140.

It is an arithmetic number, because the mean of its divisors is an integer number (19104788682).

Almost surely, 2^200145405020 is an apocalyptic number.

200145405020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200145405020 is an abundant number, since it is smaller than the sum of its proper divisors (258369523348).

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

200145405020 is a wasteful number, since it uses less digits than its factorization.

200145405020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909751861 (or 909751859 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

Adding to 200145405020 its reverse (20504541002), we get a palindrome (220649946022).

The spelling of 200145405020 in words is "two hundred billion, one hundred forty-five million, four hundred five thousand, twenty".