40000200020000 has 120 divisors (see below), whose sum is σ = 107352537404112. Its totient is φ = 14545527200000.

The previous prime is 40000200019987. The next prime is 40000200020003. The reversal of 40000200020000 is 2000200004.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 40000200020000.

It is not an unprimeable number, because it can be changed into a prime (40000200020003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 90689546 + ... + 91129545.

Almost surely, 2^{40000200020000} is an apocalyptic number.

40000200020000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40000200020000 is an abundant number, since it is smaller than the sum of its proper divisors (67352337384112).

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

40000200020000 is a wasteful number, since it uses less digits than its factorization.

40000200020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181819132 (or 181819109 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 8.

Adding to 40000200020000 its reverse (2000200004), we get a palindrome (40002200220004).

The spelling of 40000200020000 in words is "forty trillion, two hundred million, twenty thousand".