208005107090 has 16 divisors (see below), whose sum is σ = 408446392320. Its totient is φ = 75638220720.

The previous prime is 208005107083. The next prime is 208005107099. The reversal of 208005107090 is 90701500802.

It is a super-2 number, since 2×208005107090² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (208005107099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 945477650 + ... + 945477869.

It is an arithmetic number, because the mean of its divisors is an integer number (25527899520).

Almost surely, 2^208005107090 is an apocalyptic number.

208005107090 is a deficient number, since it is larger than the sum of its proper divisors (200441285230).

208005107090 is a wasteful number, since it uses less digits than its factorization.

208005107090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1890955537.

The product of its (nonzero) digits is 5040, while the sum is 32.

Adding to 208005107090 its reverse (90701500802), we get a palindrome (298706607892).

The spelling of 208005107090 in words is "two hundred eight billion, five million, one hundred seven thousand, ninety".