40200218855 has 4 divisors (see below), whose sum is σ = 48240262632. Its totient is φ = 32160175080.

The previous prime is 40200218783. The next prime is 40200218879. The reversal of 40200218855 is 55881200204.

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 40200218855 - 2¹² = 40200214759 is a prime.

It is a super-2 number, since 2×40200218855² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4020021881 + ... + 4020021890.

It is an arithmetic number, because the mean of its divisors is an integer number (12060065658).

Almost surely, 2^40200218855 is an apocalyptic number.

40200218855 is a deficient number, since it is larger than the sum of its proper divisors (8040043777).

40200218855 is an equidigital number, since it uses as much as digits as its factorization.

40200218855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8040043776.

The product of its (nonzero) digits is 25600, while the sum is 35.

The spelling of 40200218855 in words is "forty billion, two hundred million, two hundred eighteen thousand, eight hundred fifty-five".