4099500161 has 4 divisors (see below), whose sum is σ = 4100041152. Its totient is φ = 4098959172.

The previous prime is 4099500157. The next prime is 4099500179. The reversal of 4099500161 is 1610059904.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4099500161 - 2² = 4099500157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4099500961) 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, 258965 + ... + 274338.

It is an arithmetic number, because the mean of its divisors is an integer number (1025010288).

Almost surely, 2^4099500161 is an apocalyptic number.

It is an amenable number.

4099500161 is a deficient number, since it is larger than the sum of its proper divisors (540991).

4099500161 is an equidigital number, since it uses as much as digits as its factorization.

4099500161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540990.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 4099500161 is about 64027.3391685146. The cubic root of 4099500161 is about 1600.4556203742.

The spelling of 4099500161 in words is "four billion, ninety-nine million, five hundred thousand, one hundred sixty-one".