4000206644500 has 96 divisors (see below), whose sum is σ = 9752318319744. Its totient is φ = 1420792128000.

The previous prime is 4000206644471. The next prime is 4000206644501. The reversal of 4000206644500 is 54466020004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000206644501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8220597 + ... + 8693596.

It is an arithmetic number, because the mean of its divisors is an integer number (101586649164).

Almost surely, 2^{4000206644500} is an apocalyptic number.

It is an amenable number.

4000206644500 is an abundant number, since it is smaller than the sum of its proper divisors (5752111675244).

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

4000206644500 is a wasteful number, since it uses less digits than its factorization.

4000206644500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16914266 (or 16914254 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

The spelling of 4000206644500 in words is "four trillion, two hundred six million, six hundred forty-four thousand, five hundred".