200819470655 has 4 divisors (see below), whose sum is σ = 240983364792. Its totient is φ = 160655576520.

The previous prime is 200819470651. The next prime is 200819470703. The reversal of 200819470655 is 556074918002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 200819470655 - 2² = 200819470651 is a prime.

It is a super-2 number, since 2×200819470655² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200819470651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20081947061 + ... + 20081947070.

It is an arithmetic number, because the mean of its divisors is an integer number (60245841198).

Almost surely, 2^200819470655 is an apocalyptic number.

200819470655 is a deficient number, since it is larger than the sum of its proper divisors (40163894137).

200819470655 is an equidigital number, since it uses as much as digits as its factorization.

200819470655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40163894136.

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 200819470655 in words is "two hundred billion, eight hundred nineteen million, four hundred seventy thousand, six hundred fifty-five".