6900224161 has 4 divisors (see below), whose sum is σ = 6901066900. Its totient is φ = 6899381424.

The previous prime is 6900224153. The next prime is 6900224171. The reversal of 6900224161 is 1614220096.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6687968400 + 212255761 = 81780^2 + 14569^2 .

It is a cyclic number.

It is not a de Polignac number, because 6900224161 - 2³ = 6900224153 is a prime.

It is a super-2 number, since 2×6900224161² = 95226186944096307842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6900224131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408966 + ... + 425503.

It is an arithmetic number, because the mean of its divisors is an integer number (1725266725).

Almost surely, 2^6900224161 is an apocalyptic number.

It is an amenable number.

6900224161 is a deficient number, since it is larger than the sum of its proper divisors (842739).

6900224161 is an equidigital number, since it uses as much as digits as its factorization.

6900224161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842738.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 6900224161 is about 83067.5879088830. The cubic root of 6900224161 is about 1903.7988778192.

The spelling of 6900224161 in words is "six billion, nine hundred million, two hundred twenty-four thousand, one hundred sixty-one".